Earnings Volatility

Earnings volatility is the predictable way implied volatility behaves around a company's earnings report: it climbs steadily in the days before, peaks right at the announcement, then collapses the moment the news is out.

Earnings are the biggest scheduled uncertainty a stock faces, and options price that uncertainty in advance. Understanding the cycle is the key to not getting burned. Let me walk through it.

The Predictable Ramp

Because everyone knows exactly when earnings will drop, the market prices the uncertainty ahead of time. In the days and weeks before the report, traders bid up options for protection and speculation, and implied volatility ramps higher and higher. Options get fat and expensive.

Then the report hits. The single biggest question, what will the numbers say, is suddenly answered. With the mystery gone, implied volatility collapses almost instantly. This is a volatility crush, and in the earnings context it is often called an IV crush. The whole cycle is a slow inflation followed by a sudden pop.

IV ramps up, then crushes

the scheduled uncertainty of an earnings report

Before the report

IV ramps up

Options expensive

Uncertainty builds

After the report

IV crushes

Options deflate

The numbers are known

A slow inflation, then a sudden pop. That is the earnings cycle.

The Expected Move

Earnings volatility does more than make options pricey. It tells you how big a move the market is bracing for, called the expected move.

You can read it straight from option prices. When Apple is at $200 heading into earnings, an at-the-money straddle might cost $12 a share. That $12 is roughly the move the market expects, up or down, so traders read it as "about a $12 swing is priced in," giving a rough range of $188 to $212.

This is why buying options into earnings is so tricky. The inflated price already assumes a big move. To profit as a buyer, the stock has to move more than that expected move, not just in the right direction. A beat that everyone anticipated may barely budge the stock, and the crush does the rest.

How Traders Play It

Earnings volatility splits traders into two camps, and both are betting on the crush.

Sellers lean into the high pre-earnings IV. They sell inflated premium, betting the actual move will be smaller than the expected move, and profit as the crush deflates their options. This is the logic behind selling premium into earnings.

Buyers need conviction that the real move will exceed the expected move. They pay the fat premium hoping for a surprise big enough to beat both the price and the crush. It is a higher bar than it looks.

Either way, the mistake to avoid is buying an option into earnings without realizing how much of the price is pure, about-to-vanish volatility.

Key Takeaways

Earnings volatility ramps up before a report and crushes after.
The pre-earnings price reflects an expected move you can read from a straddle.
Buyers must beat the expected move, not just the direction.
Sellers bet the real move stays smaller than expected.

Pop Quiz

Three quick questions to see what stuck. Pick an answer and the explanation shows up right away.

What happens to implied volatility right after an earnings report?

Once the numbers are known, the uncertainty is gone and IV crushes, deflating the options.

A $200 stock's earnings straddle costs $12. What does that roughly tell you?

The at-the-money straddle price approximates the expected move, so about a $12 swing is priced in.

To profit buying an option into earnings, what does the stock need to do?

The inflated price already assumes a big move, so a buyer needs the actual move to exceed it, then beat the crush.

Bottom Line

Earnings volatility is the most predictable rhythm in options: IV inflates into the report and crushes right after. That price embeds an expected move, a rough range the market is bracing for, which you can read straight off a straddle.

The takeaway is simple but easy to forget. Around earnings you are not just betting on direction, you are betting on whether the move beats what is already priced in. Sellers bet it stays small, buyers bet it runs big, and the crush is the tide both are swimming against.

Keep going: the collapse itself is IV crush, the broader version is a volatility crush, and the classic way to bet on the move is a straddle.