Short Strangle

Two naked out of the money legs, same expiry, margined by the exchange as a combined position.

Enter both legs together and check the combined margin first; it is a little less than two independent naked options but still substantial. Strikes with liquid quotes matter more here than squeezing the last point of premium.

The routine exit is buying the pair back once 50 to 70 percent of the credit has decayed. The remaining premium earns little per day while both tails stay live, and freed margin can be redeployed into the next cycle.

Manage the tested side early. If the index approaches a strike, closing or adjusting before the option goes in the money costs far less than reacting after. Never let hope substitute for the exit plan written before entry.

Both legs shed time value daily, and with the market inside the range the whole credit glides toward you as expiry approaches. Decay accelerates in the final two weeks, which is where strangle sellers concentrate.

Because the options start out of the money, their value is entirely time and volatility. The strangle is, in effect, a pure sale of those two quantities, and theta is the half of the pair that works reliably in your favour.

The strangle is heavily short vega. Selling when IV sits high in its range, and letting normalisation shrink both legs, adds a second profit engine on top of decay. Selling depressed IV instead collects thin premium for identical tail risk.

A volatility spike is the position's nightmare: both options inflate simultaneously, the loss appears before the index nears a strike, and margin swells at the same moment. Sizing must assume this scenario, because it eventually arrives.

Convert to an iron condor by buying a wing outside each short strike. The worst case becomes fixed, margin falls sharply, and the credit sacrificed is modest. Many traders simply begin with the condor.

Roll the untested side toward the market when one strike is challenged, collecting fresh premium that widens the tested breakeven. One measured roll is defence; serial rolling is denial.

When the range genuinely breaks, close both legs. The untested side is nearly worthless anyway, and the tested side only grows more expensive to buy back as the trend runs.

A short strangle is the mirror of a long strangle. Adding protective wings, a further out long call and long put, turns it into an iron condor, which caps its open ended risk.

It is essentially an out of the money short call and short put run together, so it behaves like the premium selling core of an iron condor without the wings.