Earnings season can be a rollercoaster for traders and investors alike. The uncertainty surrounding a company’s upcoming earnings report often leads to large price swings, both up and down, that can make or break your portfolio. That’s why understanding the expected move before earnings matters. An accurate estimate of this move helps you protect your capital and pick better trades.

In this article, we’ll cover what the expected move is, why it matters, and practical methods to estimate it before an earnings announcement.

Why Estimating Expected Move Before Earnings Matters

Earnings reports are one of the most anticipated market events, often accompanied by heightened volatility. Price gaps and big swings can occur as the market digests new information about revenue, profits, guidance, or other key metrics.

But here’s the catch: the market generally prices in some level of expected volatility leading up to earnings. This “expected move” is essentially the market’s forecast of how far a stock is likely to move in either direction once the earnings hit the tape.

For investors and traders, knowing the expected move before earnings helps in several ways:

What Is the Expected Move Before Earnings?

The expected move is a statistical estimate of the price range a stock might trade within after its earnings release, typically expressed as a dollar amount or percentage. It’s derived primarily from the options market, where implied volatility and option prices reflect the market’s consensus on future price swings.

For example, if a stock is trading at $100 and the expected move before earnings is $5, the market anticipates the stock might trade between $95 and $105 in reaction to the earnings report.

How to Calculate Expected Move Before Earnings

There are several ways traders estimate the expected move before earnings. Let’s explore the most common and practical methods.

1. Use Options Implied Volatility

The options market provides a real-time, market-driven expectation of volatility. The key inputs are:

A simple formula to estimate the expected move is:

Expected Move = Stock Price × Implied Volatility × √(Days to Earnings / 365)

Step by step:

This gives you a rough estimate of the one standard deviation move expected by the market.

2. Use the Options Straddle Price

Another direct way is to look at the price of the at-the-money straddle (simultaneous purchase of a call and a put with the same strike and expiry after earnings).

The sum approximates the expected move in dollars the market is pricing in for the earnings event.

For example:

If the stock is trading at $100, the market expects the price could move roughly $5.50 up or down.

3. Historical Earnings Moves

Reviewing past earnings reactions can also provide context:

While this method doesn’t capture market sentiment or volatility changes, it adds useful perspective, especially for stocks with consistent earnings patterns.

Practical Tips for Using Expected Move Before Earnings

Estimating the expected move before earnings is just the first step. Here are actionable tips to make the most of this knowledge.

Be Mindful of the Time Frame

The expected move changes as the earnings date approaches because implied volatility fluctuates. Closer to the announcement, IV often spikes, increasing the expected move. Check the expected move regularly to stay updated on market sentiment.

Incorporate Implied Volatility Crush

After earnings, implied volatility usually collapses, causing option premiums to drop sharply regardless of the stock’s direction. If you trade options, consider this “IV crush” and how it impacts your strategy.

Use Expected Move to Set Realistic Targets

If you’re trading directional options or stock positions, set profit targets and stop losses based on the expected move. For instance, if the expected move is $5, expecting a $10 move might expose you to higher risk.

Combine with Fundamental and Sentiment Analysis

While options prices reveal market expectations, combining this with fundamental analysis or earnings previews helps you form a fuller picture. For example, strong earnings guidance may hint at a move beyond the expected range.

Adjust for Unusual Events

Sometimes, unexpected news or sector-wide shifts can cause earnings reactions outside the typical expected move. Use expected move as a guide, but remain flexible and prepared for surprises.

How earningscalls.dev Can Help You Estimate Expected Move Before Earnings

earningscalls.dev provides earnings data, stock price reactions, and options analytics in one place. The platform helps you:

Conclusion

Before the next report, price the ATM straddle on the first expiry after earnings, check it against the IV formula and the stock's average move over past quarters, and set position size, targets and stops inside that range. Expect the IV crush after the release if you hold options through it.

Start using earningscalls.dev today at https://earningscalls.dev and take the guesswork out of earnings trading!

Related reading