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Trading Earnings Volatility with Long Straddles

Article Quant Q&A · Author: Fuce
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Summary

The document considers buying an at-the-money long straddle after an earnings date is announced, then selling before the announcement to capture rising implied volatility. It explains that implied volatility may rise gradually in the weeks before earnings, but the straddle’s two long option legs also lose value to time decay. A rise in implied volatility or a move in the underlying must be large enough to offset that decay; modest price moves may produce limited gains because one leg’s loss offsets much of the other’s gain.

The answer cautions that holding the position through earnings exposes it to a sharp volatility contraction, which can erase premium even when the stock moves. It suggests considering structures that sell expensive near-term premium and buy less expensive longer-dated premium to benefit from the volatility drop. The discussion is qualitative: it provides no historical tests, probability estimates, or specific entry and exit rules, and the outcome depends on the stock, timing, and relative changes in volatility, price, and time value.

Key ideas

  • A pre-earnings straddle can gain from rising implied volatility or movement in the underlying.
  • Time decay works against a long straddle while the trader waits for the announcement.
  • A small underlying move may not generate much profit because the losing option offsets part of the winning option.
  • Holding through earnings exposes the position to post-announcement volatility contraction.
  • The answer suggests comparing near-term and longer-dated option premiums, but gives no tested trade rules.

Tags

OptionsVolatilityEvent-drivenRisk management
Full text
# Is this a new way to profit from earnings releases using long straddles?


# Is this a new way to profit from earnings releases using long straddles?












How much can I reasonably make if I buy a long straddle just as soon as earnings release day is announced and ride the rise in implied volatility along with any movements till the earnings release date just before earnings is released?

If I do this without waiting for the gap up or down from the release, will I make just as or a similar amount of money compared to waiting for the gap up down due to the earnings release?

Will it not work because a long straddle is short theta? What other alternatives are there.

Thanks a lot.

## Answer by Bob Baerker (score 1)

https://quant.stackexchange.com/a/57398

The exact date of the earnings announcement (EA) is not relevant to your strategy because everyone knows that under normal circumstances, earnings dates are about 3 months apart.

There are several moving parts in your long straddle strategy.

For higher beta stocks that tend to experience EA price moves, the implied volatility (IV) starts increasing 4-6 weeks before the earnings announcement. It's gradual. So that means that you're going to fight two sided time decay for a long time. It's possible that you could have a 50% or more increase in IV in a month and lose money.

If you buy your straddle closer to expiration, IV has already increased somewhat so you're paying up for the straddle but with the same issues. What time frame to buy depends on the rate of IV ascent and when it occurs in the 4-6 week period.

With an ATM straddle, the delta of each leg is approximately 50 so you're not going to gain much for modest moves in either direction because one side loses a decent amount of what the other side gains.

The short answer is that it is possible to make money with this strategy before the EA but in order to do so, the increase in IV and/or the change underlying price are going to have to be enough to overcome the theta decay. Possible but not a given.

AFAIC, holding a straddle through the EA announcement is generally not a good idea because the post EA IV contraction is a killer as premium collapses.

My general suggestion would be to look at ways to sell inflated near expiration premium and buy cheaper further expiration premium so that you capitalize on the IV collapse. Roll down hill rather thanswim upstream :->)

Shown in full with attribution under the source's licence. Licence: CC BY-SA 4.0 (Stack Exchange)

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.