Long and short volatility

Understand the mechanism

A long straddle can benefit from a sufficient move either way, while a strangle pays less but generally needs more distance from its strikes. Short versions reverse cash flows and tail exposure.

For managed Delta-hedged positions, realized path and hedge costs matter; a terminal payoff alone is not the entire volatility-trading return.

Walk through the process

State whether the thesis is a large terminal displacement, an IV increase, realized movement available to hedge or a relative-value surface move. These are different propositions.

Compare premium with a defensible scenario and costs, not with IV rank alone. A high percentile can reflect genuinely high risk.

Contract and decision boundary

Terminal examples use simultaneous intrinsic realization of all stated legs, before unspecified costs. Actual American exercise, assignment, early liquidation and broker handling can create different interim cash needs. These fictional comparisons are education, not orders or personalized investment advice.

A worked example

Compare a fictional 100 straddle costing 8.40 with a 95/105 strangle costing four. At expiry 106, straddle P/L is −2.40 and strangle P/L −3 per unit. At 115 they earn 6.60 and six respectively.

Lower initial cost did not make the strangle dominate every outcome. The graph shows the strangle's flat center and outer slopes; the straddle lesson provides the single-vertex comparison.

Check your understanding

Try the question before revealing its answer. These are reading checks, not trading certification or a site completion record.