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Long Straddles: Break-Evens, Premium Risk, and Volatility Effects

Article OKX Learn

Summary

A long straddle buys a call and a put on the same underlying asset, with the same strike and expiration, often near the money. The position seeks a sufficiently large move in either direction. Its maximum loss is the combined premium paid, while gains can be substantial if the underlying moves beyond the upper or lower break-even point. For a single strike, those break-evens are the strike plus or minus the total premium. The document illustrates the mechanics with an ETH example and describes using the position when a catalyst or breakout may increase volatility but direction is uncertain.

The strategy is exposed to implied volatility and time decay: falling volatility can reduce both options’ values, and both contracts lose time value as expiration approaches. A move that is too small, or arrives too late, may leave the trader with a loss of some or all of the premium. The example supplies specific ETH prices, an expiration, and premium cost, but it is illustrative rather than evidence of a repeatable edge. The article also distinguishes a short straddle, whose risk profile is materially different, and briefly mentions covered calls and naked puts.

Key ideas

  • A long straddle combines a call and put with matching underlying, strike, and expiration.
  • The position benefits from a sufficiently large price move in either direction, after accounting for premiums.
  • The maximum loss for the buyer is limited to the premiums paid for both options.
  • Break-even prices are the strike adjusted upward and downward by the combined premium.
  • Implied volatility and time decay can erode the position even when the underlying has not moved much.
  • The ETH example illustrates the payoff mechanics but does not demonstrate that the strategy has a reliable edge.

Tags

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