The Test Bench › option_strategy

Does Short Straddle actually work?

WINNER

Beat its benchmark on the honest footing.

The claim

Selling the ATM straddle harvests the most premium — TastyTrade / premium sellers

What we did

Tested against Expectancy net of REAL bid/ask — patient mid vs. crossing the spread, 2014–2025, real EOD bid/ask, manage 50%/21DTE.

The result

Result: 62.0 expectancy $/trade (crossing the spread)

mid +103 → cross +62/trade, keeps 60% of edge, 68% win, worst -6550

The numbers

Worst drawdown-13285.8%

Verdict

Real edge that survives real fills: +62/trade crossing the spread (keeps 60% of the +103 mid-price number their studies quote), 68% win. Undefined-risk: keeps its edge through the spread, but you carry the naked tail. But the win rate hides the tail — worst trade -6550 on a 1-lot.

What the test did and did not do

Almost nobody publishing a backtest says which of these they did. We list the ones we failed as well as the ones we passed.

Tested 2026-06-23. The same treatment, applied to every other system, is on the test bench.