Mettler-Toledo International Inc. (MTD) Earnings Call Transcript & Summary

February 24, 2021

New York Stock Exchange US Health Care Life Sciences Tools and Services conference_presentation 42 min

Earnings Call Speaker Segments

Patrick Donnelly

analyst
#1

Hi. Great. Thank you for joining us. I'm Patrick Donnelly, the tools and diagnostics analyst here at Citi. Happy to have Shawn Vadala, the CFO of Mettler-Toledo, with us for the next session. Shawn, maybe just start high level, we can start with 4Q, maybe just a quick recap. Obviously, a strong quarter for you guys. Things continue to improve sequentially the core business side. And then you've already raised 2021 growth guidance that you initially gave in 3Q. So maybe just talk through again kind of the biggest drivers of the strength in 4Q and what gave you confidence to move those numbers higher already this early in the year.

Shawn Vadala

executive
#2

Yes, great. Well, hey, hello, Patrick, and hello, everybody, on the call. Thanks for hosting us today. Happy to be here. Yes, we were very pleased with the fourth quarter. It was a really strong quarter, better than we had initially expected. One of the things that stood out was very broad-based growth throughout the portfolio. But maybe if I highlight a couple of key positive points that happened in the quarter that also gave us some confidence as we were entering 2021. So our Lab business grew 12%. And what was nice about lab, there have been favorable market dynamics in the biopharma space. And so product categories that had more exposure to biopharma did well. We already had seen that in Q3. But what we saw is if you look at the rest of the portfolio, things really picked up as well during the fourth quarter. And so very good growth throughout the portfolio. And we also continue to benefit from some of the COVID testing in our pipetting business too. For the overall group, that's about -- we estimated that to be about 1% to 2% benefit. And then if we look at our Core Industrial business, this business has had -- we felt -- we feel like it's had very good resilience over the last few year. If you even go pre-COVID and you looked at some of the declining PMIs in Europe and other areas where this business has been more historically economically sensitive, it's really held up well. And then in the COVID situation, we felt like the business has performed really well. And what do we think is happening is that our ability to redirect resources towards better growth opportunities really continues to play well here, especially given the high degree of fragmentation in our industrial market. Industrial also benefits from our China business too. About 1/3 of our Core Industrial business is China and which is probably a good segue to China. So like in China, we had a very strong third quarter. If you remember, we grew 17% in Q3 in China. At that time, we were questioning a little bit of how much of that was pent-up demand, how much of that was maybe a little bit of government stimulus. But when we look at the fourth quarter, again very pleased with 12% growth in the quarter. We saw double-digit growth in both our laboratory and our Industrial business in China, which is we felt was a very good sign. And so overall, we feel like China is having a very strong recovery. And as we kind of like look towards Q1, they'll benefit from an easier comparison to last year. As you remember, China was down 13% in Q1 of last year. At the moment, we guide China mid to high 20s -- 20% -- mid to high 20s in terms of growth for the first quarter. So clearly, that was one of the things on our mind in terms of increasing the guidance for 2021. It's just knowing that we had a strong start to the year in China, but also in these other businesses that I mentioned. And if you look at Europe and the Americas, we also had a strong finish to the year with high single-digit growth in Q4 as well. And so when you look at Q1, we're now looking at 11% and 13% growth. And that, again, gave us more confidence to increase our full year guidance this early in the year.

Patrick Donnelly

analyst
#3

Yes. Shawn, you touched on China, always a hot topic with Mettler. So maybe start there. As you mentioned 12% growth in the quarter. I think you talked about high single digits for 2021. So maybe just kind of parse out the strength that you saw there. Again, to you point, it sort of bottomed out in 1Q and then really nice recovery throughout the back half. It's nice to see sustainable kind of growth from 3Q into 4Q. So again, I guess, maybe just talk through what you saw as the year progressed. And again, what's baked into that high single as we think about '21?

Shawn Vadala

executive
#4

Yes, sure. So yes, we're really pleased with China. We have a very strong team there. As we've talked about many times in the past, they do a wonderful job. Like we talk a lot about at Mettler-Toledo about identifying and pursuing growth opportunities. And I would say our team in China is good as any of our teams around the world in terms of their ability to do that. So I think they've been very agile and very good at identifying opportunities. I do feel like there's also a strong recovery occurring in China at the moment too not only on the -- in the lab side, there's very strong dynamics in terms of the focus on life sciences and even just with the COVID environment, the focus on vaccine development and production as well as even an increasing trend towards trying to create more self-dependence, independence, so I think in terms of life sciences in China. But on the industrial side, we've seen a very strong recovery. And part of that was probably pent up in Q3, but we saw it again here in Q4. And I do tend to think that there's some element of government stimulus going on beyond maybe what we had initially expected. Like if you looked at some of these programs that the Chinese government was talking about earlier in the year, they didn't necessarily sound like your historical programs towards economic development going to the western part of the country. But what we've seen is that there certainly has been some investments in projects in different parts of the country that we feel like we're benefiting from. And also, to a certain degree, I feel like there was maybe some credit easing going on over the last maybe 6 months or so that certainly creates a better economic environment for the Industrial business. But as you know, our Industrial business also is not necessarily weighted towards exporters. And so we certainly haven't gotten caught up with any of those headwinds per se. And if you take a step back, our Industrial business has also done a really good job over the last several years of really trying to refocus their resources towards more attractive market segments. And so we're less dependent on maybe some of the heavier industrial segments that we would have been 5 or 10 years ago. And so if you kind of like look at the Lab business plus the more attractive segments within Industrial, it's about 2/3 of the mix of that business right now. So it's a much healthier business than it would have been 5 or 10 years ago, and I think it's really well positioned to kind of continue some of these trends. As we kind of look at 2021, we're going to -- certainly, as I mentioned before, we're going to have an easier comparison in Q1. And so we're going to have a very strong start to the year. I would expect Q2 probably is going to be -- maybe not as -- not -- it's not going to be as strong as Q1, but probably another good quarter. But then when we get to the second half of the year, we're very much going to start lapping very difficult comparisons. And I think that's when it gets a lot more difficult for us in China. As I mentioned before, Q3, we grew 17% in China, and we had more than 20% growth on the Core Industrial business. So it's really that second half of the year in terms of comparisons that's on our mind. But looking beyond 2021, we're very optimistic about China. We feel very good about the growth dynamics here, whether it's this focus on life sciences, the number of new scientists graduating universities each year. And again, we're selling personal instruments. So that's very meaningful. And then just all the other -- the economic side of it, increasing GDP, GDP per capita, more focus on automation, productivity, quality, data integrity, all these things are favorable trends for us.

Patrick Donnelly

analyst
#5

Yes, it's a good lead into my next question, which is kind of as we think about China in the longer term, clearly, to your point, you guys played a lot of attractive pieces of this market. Obviously, a lot of investments still going on in the life science industry in that region. I guess, should we be thinking about this as kind of a high single-digit sustainable grower for you guys? What's the right framework to put around that?

Shawn Vadala

executive
#6

Yes. That's very much how we think about China. I very much think it's going to be above our corporate average, very much think of it as a high single-digit grower for the foreseeable future. We'd certainly expect there's going to be years where we're going to do double digits in China as well. And as you know from the past, I mean, things can always change quickly in China too. So I think we'll see volatility. But I think if you look over a longer-term horizon, it should be a high single-digit grower, yes.

Patrick Donnelly

analyst
#7

Okay. And maybe shifting over to Europe. We saw some nice improvement sequentially throughout the year there. Certainly probably a tale of a few different stories there, with some countries that have been a little more cautious with things like COVID, with some of the new variants and kind of pausing things. I guess, what have you seen kind of at the end of '20 and into this year around just the general environment there?

Shawn Vadala

executive
#8

Yes. It's been interesting. We certainly did much better than we expected in Europe in Q4. I mean we grew 7%. And I -- if we kind of look back at our original guidance, I think we were thinking maybe it was going to be flattish in Q4. So certainly exceeded our expectations. What's been interesting is the new variant certainly is a hot topic in Europe, but it seems, from our perspective, to be more a topic around impacting social restrictions and social lockdowns. We really have not had much of an impact from a business perspective. At least that's been our experience. The one exception I would highlight is our Product Inspection business, which just globally has been more negatively impacted by COVID than our other businesses. But absent that, we really had a good finish to the year. And if I look at our Q1 guidance in Europe, our guidance is high single digit for Q1. So we expect to have a very good start to the year there as well too. But I don't want to diminish the uncertainty that the virus can create either. It's certainly a fluid situation, and things obviously can change quickly.

Patrick Donnelly

analyst
#9

Yes. And then maybe last one on the geographical basis, and then we'll hop into some segment questions. But on the U.S., really nice improvement from 3Q to 4Q, obviously. I think it was down 7% kind of midyear in 2Q and then all the way up to high single-digit growth in 4Q. Can you just talk through, I guess, that recovery, again, quite steep? And then is it just customers being able to work better around COVID? Is there more testing -- more COVID benefit in the number? Maybe just talk through that. And then again, it would be great to hear your expectations as we enter into '21 here.

Shawn Vadala

executive
#10

Yes, very similar to Europe. Very pleased with the quarter. As you said, we did -- and I think it was about 8% growth here in Q4. We definitely saw a lot of good momentum, especially in the area of biopharma. COVID testing probably disproportionately benefits the U.S. a little bit more than the other geographies, just given the size of our pipette business in the United States. But overall, I would say we're executing very well here. All the things we talk about in terms of our digital marketing strategies also are very applicable to the Americas. So I think we're doing well executing on that. I think we also saw the general market conditions outside of biopharma to slowly start to pick up. Now I'd say some pockets are still slower than others, but we did start to see some improvement here during the fourth quarter. And as we kind of like look to Q1, similar to Europe, we kind of look at high single-digit growth start to the year in the Americas. And for both Europe and for the Americas were more in the mid-single-digit growth kind of a range for the full year for 2021.

Patrick Donnelly

analyst
#11

Right. Okay. And then maybe we will do some product questions. I guess looking at the Core Industrial business, managed to grow low single, even facing a mid-single-digit comp. I certainly would have -- would not have predicted that midyear during the peak of COVID. So maybe just talk through, I guess, what you saw there. It seems most correlated, obviously, to China, as you touched on a little bit. But yes, it would be great just to hear kind of your thoughts on what drove that recovery. And the resiliency certainly proved a lot more resilient than I thought. And again, I think it probably plays into some of your commentary about how that business has shifted over the years.

Shawn Vadala

executive
#12

Yes. Yes. I think you've hit a lot of the key points. I mean -- maybe I'll start with the latter is like I -- there certainly has been a resilience in this business in the last few years that's -- we've been very encouraged by. And I think a lot of it has to do with the high degree of fragmentation in the Industrial business. And so it's like a ripe opportunity in terms of how to take advantage of all the things we're doing with Spinnaker sales and marketing, also some of these digital sales and marketing programs that we've talked a lot about over the last 3 to 6 months. And so just the ability to use the analytics to identify opportunities and then really deliberately guide the sales force towards those opportunities, then provide them with information about the opportunity supplement that with digital tools to help them prepare for the opportunity, whether it's value selling or cross-selling. And then having a lot of digital capabilities for how to better engage our customers, whether it's with inside resources or whether it's with digital capabilities like e-marketing and things like that. And so like that, all those things we're doing in all of our businesses or at least most of our businesses. And I would say Industrial has been arguably benefiting the most, especially as we've been just really shifting our focus towards growth opportunities and what we would call more attractive market segments. So it's a better mix like we talked about a little bit before. But there is also an element of China. Out of -- if you look at the mix of Industrial, probably about 1/3 of Core Industrial is China. And so that's going to be a higher mix percentage than the other product categories. And so when China is doing well in Industrial, certainly it's going to help the overall Industrial numbers. But if I look at Q4 as an example, I think we still had growth in Europe and the Americas, certainly not to the same degree we had in China. But just having growth, I think, is a very positive sign and in the environment that we've been operating in. And then maybe one final point on Industrial. I think our team has also done a nice job on innovation too. And as the market continues to look towards ways to gain more productivity and automation, but also digital connectivity, these types of topics also play very well to our sweet spot in terms of the value proposition that we can provide to the market.

Patrick Donnelly

analyst
#13

Yes. This business, I guess, when we think about '21, it feels like it's been a pretty consistent mid-single-digit grower over the past few years, obviously, a little lighter in 2020 understandably because of COVID. So I guess given the comp dynamics here as we enter '21, what's the right way to think about how it plays out this year?

Shawn Vadala

executive
#14

Yes. I mean we -- it's funny, because like at the end of Q3, we were pretty cautious on Industrial when we gave our initial guidance. So we're thinking like low single-digit guidance. We were very mindful of the tough comparison we were going to have in China in Q3 of this year. As I mentioned before, China in Core Industrial grew more than 20% in Q3 of 2020. And we also were a little bit concerned about what the economy was going to look like too, because there is an element of uncertainty around the economy post-COVID. Once you get past government stimulus and these types of things, what are things going to look like? And historically, this business still is the one that has been more sensitive to the economy versus our other businesses. But when we -- so -- but when we look at the year now, we feel definitely more positive. We're going to have a very strong start in our Chinese business. And I think we're going to have also good growth in our Americas and our European businesses too. So if you look at the cadence of the year, we're going to start off very strong in Core Industrial, but then we're going to have very difficult comparisons in the second half of the year. And so when you kind of blend all that together, right now, we're thinking it's mid-single-digit growth. But of course, it's hard to project at this point in time what the second half of the year is going to look like.

Patrick Donnelly

analyst
#15

Yes. Understood. And then maybe shifting to product inspection. Hard to pick at anything with Mettler. But if anything, maybe this was the one area that was slightly disappointing. In 2020, I think it was down 7% for the year, didn't really see that much of a recovery as a lot of the rest of the business did. Just talk through, I guess, what you guys saw there. It's been a little more muted, obviously, in recent times after being a great business. So is it just a lack of willingness to spend from customers on the CapEx side? Maybe just talk us through, I guess, what you're seeing there, and then we can get into expectations.

Shawn Vadala

executive
#16

Yes. Yes. No, it was definitely below our expectations as well, including in the fourth quarter. I think there's a few dynamics. I think one is it is more susceptible to the negative side of COVID. If you think about the business, about 70% of the business is sold into food manufacturers. And on one hand, these businesses are very busy trying to meet consumer demand, but that also creates a lot of challenge for them operationally in reconfiguring product lines from serving restaurants to consumers, also trying to keep the virus out of their facilities. If you think about earlier in the year, some of the -- some of these facilities were challenged with the virus in their facilities. And so they're very cautious now about letting visitors enter their facilities. And then at the same time, there's a -- it takes time to launch products in terms of how do you want to integrate equipment into your manufacturing facility. So if you step back, they have a lot of operational challenges at the moment. And I think it's going to take some time for them to get on the other side of that and really get on the other side of COVID before we see them really have the opportunity to focus and invest here. But beyond that, pre-COVID, this industry also had challenges as well, and I think there's a certain degree of that as well. And so if we kind of like look at the customer base, I think there has been some slowness in terms of the ability to commit to capital spending. And we've observed some delays in that area. And I -- but I think there's still going to be a really nice opportunity here post-COVID. Food safety is still an important topic. Brand protection is still an important topic. Productivity is still an important topic. And we're very well positioned here with the breadth of our portfolio, our global reach in this business as well as the size of our service business. And we've talked about that in a bit in the past. And service is very important in Product Inspection because of the uptime of these lines. And if you look at the United States as an example, we would estimate -- I'm sure you heard us talk about this in the past, but we would estimate that our service organization is about 7x larger than the next nearest competitor, which is a huge value proposition. So we feel like we're very well positioned here. And there should be a pent-up opportunity post-COVID, but it's just the timing of that is more difficult to determine at this point in time.

Patrick Donnelly

analyst
#17

Yes. I guess when you think about the '21 outlook, I think you guys originally talked about mid-single. I guess is that still the view? What have -- has customer tone changed at all as we kind of work through '21, maybe COVID numbers are coming down a little bit? I don't want to get ahead of ourselves by any means. But -- and I guess the next question would be, what would it take for this business to get back to high single or even low double this year, given again the comp dynamics is quite beneficial?

Shawn Vadala

executive
#18

Yes. I mean, hey, I -- we still view this year as a mid-single-digit growth number, but acknowledging that we're going to have easier comparisons to last year. But we are cautious while we still -- yes, numbers are getting better, but we're still in the midst of COVID. It's a very fluid situation. And we just know that this business has been the most negatively impacted out of all of our businesses by COVID. So from our perspective, we really need to get on the other side of COVID. And I think at that point, we'll start to see things start to accelerate. We view the business very much as -- I think post-COVID, I would be surprised if we didn't see this business as a high single-digit business kind of post-COVID, at least for a period of time, as there's reinvestment and pent-up opportunities. And certainly -- and also wouldn't be surprised if we're going to have a quarter here or there where we can do some double-digit growth in the business. But again, timing and duration is very difficult to determine at this point in time.

Patrick Donnelly

analyst
#19

Yes. And then maybe just on Food Retail, obviously, been volatile for quite a long time. And I know you guys manage more for profitability than growth for the most part. I guess how do you think about that as we go into '21 here? And what's the right way to think about, even on a multiyear basis, the growth rates here?

Shawn Vadala

executive
#20

Yes. Yes, Food Retail, it's 6% of our business. As you know, we don't manage it for growth. It just has different dynamics. We manage it for profitability. Part of the reason we don't manage it for growth is that it's just a very different dynamic. I mean we're literally talking about -- the rest of Mettler-Toledo is lots of diversity, lots of customers, lots of products, lots of application, and that gives us the ability to pivot and be agile. Within Food Retail, you're talking about literally a handful of large supermarket chains in a handful of countries. We're not even focusing on this business in every country in the world. It's really mostly in about 6 different countries. And so now you're talking a handful of large customers in a handful of countries. And so very quickly, you become very dependent upon their capital plans and their spending patterns and just the timing of project activity. And so I think because of that, we've always seen a lumpiness in this business over the years, and I'm sure we're going to continue to see lumpiness going forward. But over the longer term, despite all the lumpiness, we would still view it very much as a low single-digit type growth business.

Patrick Donnelly

analyst
#21

Okay. And then maybe shifting over to the Lab segment. This has put up great high single-digit growth pretty much every year, obviously, pulled back a little bit to, I think, mid-single during the pandemic. But I guess when we think about '21, should we expect a nice recovery here? Could it get back to high single or even low double, given the comp dynamic? And again, it just feels like such a consistent, stable business. Maybe just talk through the dynamics here.

Shawn Vadala

executive
#22

Yes. I think we feel -- I mean, we feel, of course, very good about the Lab business. I mean we talked about it at the beginning, very strong finish to 2020. I think they're going to start 2021. Our guidance was low teens. So we feel really good about the start to the year here. We feel very good about market dynamics, but we also feel good about our positioning and our execution. We've talked a lot in the past about how we can sell up to 40% of the instruments on a typical laboratory bench, and we can connect a lot of those instruments with our LabX software, which helps customers meet needs like with data integrity and workflow management. And so we feel very good about the Lab business. In terms of 2021, right now, we're looking at probably more like high single-digit growth for the year. But it's really going to come down to the second half of the year similar to my other comments on Industrial. We're going to start hitting some more difficult comparisons. One dynamic in Lab too is that we do have this COVID testing benefit. So as I mentioned before, that's 1% to 2% for the total group, which kind of translates to 2% to 4% for Lab. So we'll have that benefit certainly at the beginning of the year. But as we get towards the second half of the year, that's more likely to be a headwind in the second half.

Patrick Donnelly

analyst
#23

Yes. Shawn, what's the visibility into kind of the COVID tailwind side? How -- I guess, again, I assume the guidance, as you kind of called out there, projects a falloff from the testing side. I guess what's your visibility into kind of the ordering pattern there? And then, I guess, at the same time, as that falls off, some of the routine testing should come back and offset it a little bit. So maybe just talk through that piece.

Shawn Vadala

executive
#24

Yes, sure. So yes. So the COVID testing tailwind is very much about our pipetting business and the tips that are associated with COVID testing. And so as you say, we estimated that benefit to be 1% to 2% during Q3 and Q4 of last year, probably was in the 1% kind of a range in Q2 of last year. As we kind of enter Q1, we would still see it in that 1% to 2% kind of a range. We still feel very positive about the benefit here in Q1. Kind of going beyond that, I -- it's more -- probably more difficult to tell in the second half of the year. I would be surprised if we still don't see good benefits here in the second quarter, just given order trends and things like that related to the business. So I feel very good about that. It's just more about the second half of the year. As we think about like other testing opportunities, testing labs is not a significant end market for us. So I certainly wouldn't expect other opportunities specific to testing labs to necessarily offset that. But there's also other end markets throughout the lab portfolio that have been under more pressure over the past years that certainly could be an upside opportunity as we kind of get into the second half of the year, whether it's certain subsegments of chemical, whether it's a little bit of academia or other end markets.

Patrick Donnelly

analyst
#25

Sure. And then maybe just shifting over to the Process Analytics business. Can you maybe just talk through, I guess, the growth profile there? Obviously, a lot of the other, let's say, bioprocessing players have been putting up mid-teens growth, maybe a little higher with no signs of that slowing down, at least in terms of the multiyear guidance. So maybe talk through your presence there. And then how we should think about the growth profile here in the near term as maybe some manufacturing capacity gets built out related to some of the COVID vaccines, therapies, areas like that.

Shawn Vadala

executive
#26

Yes, this is a great business for us. It's been a great business for many years. It's always been well above our corporate average in terms of growth. It's also well above our corporate average in terms of profitability. So it's certainly an area we've always invested in and directed our focus and resources. In terms of like the current environment, a significant part of that business does benefit from bioprocessing, but there are other parts of the business that are outside of bioprocessing. And so whether it's chemical or clean water applications like in microelectronics and things like that. So there's certainly a portion of the business that's growing strong double digit, I would say, in bioprocessing, but there's maybe pressure in other areas. But as we kind of like look at recent quarters, but also look towards 2021, I would expect this business is going to be one of our stronger businesses, if not the strongest growth business, in 2021. So whether that's a very high single digit or a low double digit, kind of difficult to say. But again, it's going to be a little bit of the mix of these different industries and would certainly expect on the bioproduction side to be higher than the other areas.

Patrick Donnelly

analyst
#27

Sure. Okay. And then maybe diving into some of the Spinnaker stuff. I mean one of the key elements seems to be identifying where a customer could use a new instrument. You drive a replacement cycle kind of with your existing customers. Can you just talk through the typical life cycle of kind of core instruments like balances and how you're able to drive customers to adopt new products so efficiently? I think that's certainly one of the really impressive things about the company.

Shawn Vadala

executive
#28

Yes, yes, yes. So there's a couple of things. So first on -- we have -- our installed base is probably one of our greatest assets in the company in terms of data. And so we use that data to be able to run different marketing programs, because we know the age, location, application of an instrument. So we can like run specific programs to try to target opportunities for product replacement. But then the other side, I would say, is how we -- how do we bring innovation to the market. I think in the end, it's about innovation. And so innovation drives product replacement as much as anything. Lab balance theoretically can last several years, but it's that ability to bring innovation to the market that drives replacement. And when you look at our products, they typically are sold at relatively lower price points. And so it's not -- so as long as there's good innovation, it's -- the value proposition is generally very easily accepted by the end user. And it's always good to remember, we're selling directly with an application specialist directly to that end users that -- so we have someone that can articulate the value proposition. But then they -- on the other side of it, you have someone who really understands and appreciates that value proposition. And so a good example is we're in the process of launching a new analytical balance. It has a lot of automatic features to it that will obviously significantly increase productivity. But what's interesting about it is one of those features is around solid dosing, which is a very unique feature that I think we're the only ones in the market that can offer something like that. And so that really makes it much more, not only productive but -- in terms of labor time, but also in terms of like sample sizes and things like that. And then you kind of layer in our software with LabX and all the features you get with data integrity and workflow management and all those types of things, it's a very, very strong value proposition for a customer. And so we're -- that's a good example. We're about to launch that. And that, I'm sure, will drive some product replacement in and of itself. But as a reminder, no product introduction at Mettler is significant individually. We have so many -- we're so diversified that nothing tends to move the needle individually.

Patrick Donnelly

analyst
#29

Yes. Sure. Yes. And I want to make sure we save some time for the margin profile, given your position. And obviously, it's one of the more compelling pieces of the Mettler story. So maybe start on the gross margin side. You guys have seen really nice expansion here over the past few years, almost 60% now. How should we be thinking about, is there a ceiling here? Or how can you guys continue to push these higher even as we, again, approach the 60% level here?

Shawn Vadala

executive
#30

Yes. I mean I think our gross margin story is very similar to our operating margin story. So maybe I take both of them together, if that's okay. I think in terms of the gross margin, for both of them, I would say, well, it starts with driving sales. Mid-single-digit sales growth is kind of the starting formula. At the operating margin level, that will translate -- with our margin expansion programs, we believe we can translate that to 70 to 100 basis point margin expansion per year. We do that with our pricing program, and we also do that with our Stern Drive program. And so in both of those programs, I'd say we have very, very good momentum. Pricing, of course, we've been at for a while, but the level of sophistication that we're getting into continues to evolve. We have some very exciting things that we've been rolling out in pricing that gets into the area of guided price right at the time of quotation where we've -- literally have done data studies over the last few years to really try to determine which elements of price are most correlated to a willingness to pay. And then we've built some sophisticated algorithms. And through machine learning, we've refined this, and we've piloted it over the last couple of years here in the U.S., and we're starting to gradually roll that out around the world, and we'll do that over the next few years. And that's just one example of the many types of things that we're doing in the program. And then in Stern Drive, I would say it's a little bit different. We're more in the early innings of Stern Drive. In Stern Drive, we're just launching the second wave of Stern Drive. There's literally a few hundred projects within the program. And so the initial wave was focusing on things like procurement and labor, direct manufacturing productivity and back office productivity. But we still have those silos or those pillars, I should say. But now we're getting more focus on end-to-end processes and things like that. And so I feel very good about Stern Drive in terms of being like the Spinnaker equivalent of the supply chain. And I just think we'll be talking about this for many years in terms of continuous improvement and how it's helping to drive margin expansion. So those are, I'd say, the key things. Maybe going back to gross margin, the one thing to keep in mind on gross margin is that we do sometimes have mixed headwinds that -- or a headwind at the gross margin line, but not at the operating margin line. So for example, our service business over time grows faster than our product business as lower gross margin, but has a higher operating margin. And China is kind of a similar situation too. So that's why we also prefer to often talk about operating margins.

Patrick Donnelly

analyst
#31

Yes. And then, I guess, on the operating margin side, you guys have obviously made some investments in recent quarters in terms of digital sales initiatives, telesales, et cetera. I guess when we think out over the next few years, is that going to be an increased presence? And will that actually kind of be another lever for margins where you can kind of maybe move a little bit away from kind of on-the-ground field reps, which tend to be a little more expensive, kind of leverage that telesales, digital sales angle?

Shawn Vadala

executive
#32

Yes. I tend to think -- yes, there's a productivity gain there, but I tend to see it more as an opportunity to gain more sales. The really heart of Spinnaker has always been to how do you make your sales force more productive. We literally have just, what, a few thousand people of direct sales specialists and -- but we have like millions of contacts in our customer database. So like how do you really go after these opportunities in the most efficient way? And so the more time we can spend -- have our salespeople spend with the right customers on the right opportunities, the better conversion and the better we have -- the better chance we have in terms of gaining market share. And that's a little bit of what we've seen over the past year. So I kind of view it as much of anything as a growth opportunity. But yes, you're right. I mean will people necessarily be traveling exactly the same post-COVID as pre-COVID? We'll see how that works out. I mean we're still -- I think in our sales, we still would very much want our sales force to be in front of customers. But certainly, the nature of what that looks like post-COVID might be different than it did pre-COVID.

Patrick Donnelly

analyst
#33

Sure. And maybe last one. I know we're almost up on time. Maybe just on the balance sheet. Obviously, cash flow was really strong in 2020, over 100% conversion. How should we think about your balance sheet appetite here as we enter '21? You haven't done too much on the M&A side recently. What's the appetite there? And what should we expect in terms of what you want to do? Or is it just that valuations maybe are a little bit high and you guys are just being disciplined?

Shawn Vadala

executive
#34

Yes. No. I mean, well, of course, we feel very good about our organic growth story. And just given our -- the fragmentation of our markets and the momentum we have with a lot of these Spinnaker marketing strategies, we feel like we have a great organic growth story. But in addition to that, we do think we're a good platform for M&A, especially bolt-on M&A. And so I would say our -- I would characterize it as our appetite remains good. And it's -- but it's very similar to the past. And I think what you'll see is, I think, we will continue to do bolt-on M&A. We're going to only do it where we find like the right strategic fit. It will tend to be adjacencies. And there's also an element of timing. Like it takes a lot of these smaller companies, it takes an owner's willingness to sell too. And so -- but we're optimistic that in this environment, there is more activity. And so we're -- I think we're well positioned to do something when the right strategic fit is available. But overall, when you step back, our strategy is very much unchanged here. We're going to continue our -- continue as we've done in the past here. And then from a leverage perspective, I think we'll be in that 1.5% kind of net debt-to-EBITDA ratio.

Patrick Donnelly

analyst
#35

Okay. I think we're out of time, Shawn. I really appreciate the time today, and I'm sure we'll talk soon. Thank you and take care.

Shawn Vadala

executive
#36

All right. Thank you very much, Patrick. Thank you. Bye-bye.

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