Straddles and Strangles

Straddle: long both sides at the same strike

A long straddle is a long ATM call plus a long ATM put. Both at the same strike. Both at the same expiry. The position pays off if the underlying moves significantly in either direction. It is the cleanest pure long-volatility position.

Premium paid is the sum of the call and put premiums. For ATM options, this is roughly 2x the price of either single option. Breakevens are at strike plus and minus the total premium. The position needs the underlying to move beyond either breakeven by expiry to be profitable.

Strangle: long both sides at OTM strikes

A long strangle is a long OTM call plus a long OTM put. Different strikes (call above spot, put below). Same expiry. Cheaper than a straddle because both options are out of the money. Wider breakevens because the move has to be larger to reach them.

When you would actually buy these

Long straddles and strangles are bought when you expect a large move but do not know the direction. Common setups:

• Earnings. The stock will move on the report, but you have no view on which way. The straddle profits if the move is large enough.
• Binary events. FDA approval decisions, court rulings, M&A votes. The outcome is binary and produces a sharp move.
• Pre-breakout setups. Stocks compressed in tight ranges sometimes break out violently. A straddle bets on the breakout without committing to direction.

Why they often disappoint

Long straddles and strangles are usually expensive. The market knows the same things you know. If everyone expects a big move ahead of an earnings report, IV is already elevated and the straddle is priced for that move. To make money, the actual move has to exceed what was already priced in.

This is the implied-vs-realized question from L.10 in concentrated form. Most earnings-week long straddles lose money even when the stock moves significantly, because the move was smaller than the implied move and the post-earnings vol crush gutted the remaining time value.

Short straddles and short strangles

Sell instead of buy and the position becomes a pure short-volatility bet. You collect premium up front. You profit if the underlying stays between the breakevens. You lose (potentially without bound on a short straddle, with very large bounded loss on a short strangle that has no wings) if it moves significantly in either direction.

Short straddles are the most concentrated short-vol position you can put on. They are also the most dangerous. Many of the historical options blow-ups (LTCM, Niederhoffer, several volatility hedge funds) involved short straddles or short-straddle-equivalent exposures.

The iron condor (L.16) and iron butterfly (L.16) are essentially short strangles and short straddles with long wings to cap the tail risk. For most retail traders, they are the responsible way to express the same view.

Greeks at entry

Long straddle: zero delta (the long call's positive delta is exactly cancelled by the long put's negative delta), positive gamma, negative theta, positive vega. Short straddle: zero delta, negative gamma, positive theta, negative vega.

As the underlying moves, the delta-neutral position becomes directional. A move up makes the long straddle delta-positive (the call's delta grows faster than the put's becomes more negative). This is what gamma means in concrete terms: the position adapts to the move and locks in directional exposure as the move develops.

Adjustments and exits

For long straddles, the standard exit is at a target profit (say, 50% gain on premium) or before the major decay window opens (often 7-14 days before expiry). Holding to expiry is rarely optimal because the gamma is offset by accumulated theta.

For short straddles and strangles, mechanical risk management is essential. Most systematic short-vol programs close losers at 1-2x credit received and winners at 25-50% of credit. Holding through stress periods almost always ends badly.

What you carry forward

• Straddles and strangles are pure volatility positions with no directional view.
• Long versions profit from large moves; short versions profit from small moves.
• Long straddles before earnings usually lose money because IV already prices in the move.
• Short straddles concentrate left-tail risk and require strict risk management.
• Iron condors and butterflies are the bounded-risk versions of short strangles and straddles.