Options Trading Fundamentals

How to Trade Earnings With Options

Q: How do I calculate the move the market is pricing?

The practical approximation is adding the price of the at-the-money straddle in the expiration nearest the event and dividing by the underlying price. With the stock at $150 and the straddle at $12, the implied move is 8%. Many platforms show it already computed as expected move. That percentage is the bar: any buying structure needs the actual move to exceed it to make money.

Q: Which expiration should I use?

The nearest one after the announcement if you want to capture the maximum volatility collapse, because that is where IV is most inflated and falls hardest. The trade-off is that it is also where gamma is largest and an adverse move hits hardest. A slightly further expiration softens both effects: it captures less IV crush but leaves more room to manage the position if the move surprises.

ES: Cómo Operar Earnings con Opciones PT: Como Operar Resultados com Opções

Earnings releases are the most frequent binary event on the calendar: how volatility behaves around them and which structures make sense on each side.

What happens to volatility before and after

The pattern is regular enough to anticipate precisely. In the two or three weeks before the release, the implied volatility of the expiration containing the event rises steadily: participants buy options to position or hedge, and uncertainty about an unknown result gets priced in. In the moment immediately after, uncertainty vanishes at once — the numbers are out — and implied volatility collapses within minutes. This is IV crush, and its magnitude is notable: drops of 30% to 60% in near-dated IV are routine, and the effect is greater the closer the expiration sits to the announcement date.

Why buying options before earnings usually fails

The most intuitive trade — buying calls if you expect good results — is also the one that loses the most money, for a reason unrelated to being right. You buy with volatility inflated, paying a premium that already embeds the expected move; once the news is out, IV collapses and that collapse subtracts value from your option through vega. To win, it is not enough for the stock to rise: it must rise more than the move the market had already priced. If the market prices 8% and the stock rises 6%, you were comfortably right on direction and still lose. This is probably the mechanism that generates the most frustration among newer traders, because "I was right and lost" is counterintuitive until you understand vega.

Selling premium: the other side and its risks

The apparent conclusion is to sell premium before the announcement to capture the volatility collapse. The logic is sound and the trade has a real foundation — implied volatility before earnings usually exceeds the move that ultimately occurs — but the risk is exactly what compensates that premium. A stock can move 20% when the market priced 8%, and an unprotected selling structure suffers a disproportionate loss in a single session. The three rules that make this viable are strict: always defined risk — iron condors or credit spreads, never naked strangles — much smaller size than usual, and diversification across many events, because the edge is statistical and needs occurrences to show up.

How to read the expected move

Before choosing any structure, calculate what move the market is pricing, because that is the bar to clear. The most practical approximation is adding the price of the at-the-money straddle in the expiration nearest the event and dividing by the underlying price: if the straddle is worth $12 with the stock at $150, the implied move is 8%. From there, the decisive comparison is against the stock’s history of actual moves over its last eight or twelve releases. If it has historically moved 5% on average and the market now prices 12%, premium is expensive relative to its own behaviour; if it historically moves 12% and now prices 7%, premium is cheap and buying structures make sense.

The structures and when each fits

Five main approaches. The iron condor placed outside the expected move captures the volatility collapse with defined risk: it is the default structure for selling an event. The calendar spread sells the expiration containing the announcement and buys a later one, exploiting the fact that near-dated IV falls far more than long-dated IV; it is the purest way to trade the volatility differential. The long straddle or strangle only makes sense when the implied move sits below the stock’s historical move. The jade lizard combines a short strangle with a call spread to eliminate upside risk. And the most underrated option: not trading the event and simply closing existing positions before the release, which for most portfolios offers the best effort-to-outcome ratio available.

Frequently Asked Questions

How do I calculate the move the market is pricing?

The practical approximation is adding the price of the at-the-money straddle in the expiration nearest the event and dividing by the underlying price. With the stock at $150 and the straddle at $12, the implied move is 8%. Many platforms show it already computed as expected move. That percentage is the bar: any buying structure needs the actual move to exceed it to make money.

Is it profitable to systematically sell premium before every release?

A real premium exists — implied volatility before earnings usually exceeds the realised move — but exploiting it demands strict conditions: always defined risk, size well below usual, and many occurrences spread across time and sectors. A single stock moving three times the expectation can erase twenty winning trades if size is not controlled. It is a viable portfolio strategy, never an isolated trade.

Which expiration should I use?

The nearest one after the announcement if you want to capture the maximum volatility collapse, because that is where IV is most inflated and falls hardest. The trade-off is that it is also where gamma is largest and an adverse move hits hardest. A slightly further expiration softens both effects: it captures less IV crush but leaves more room to manage the position if the move surprises.

Should I close my normal positions before a company reports?

For most portfolios, yes. A comfortable iron condor can turn into maximum loss in a single session from a move that had nothing to do with the original thesis. If the trade was not designed as a bet on the event, holding it through the announcement means accepting binary risk you did not choose. Closing a few days beforehand costs a couple of commissions and removes that exposure entirely.

Why does the reaction sometimes contradict the numbers?

Because the market does not react to the data itself but to the difference between the data and what was already priced. A company can beat earnings estimates and fall 10% if its guidance disappoints, or post mediocre figures and rise if the market expected worse. In addition, forward guidance and management commentary on the call frequently move the price more than the reported result itself.