Iron Condor
Foundations · 7 min

Bid, ask, mid, and how fills happen

Spread is a tax you pay every round trip. On liquid options it is cheap. On illiquid options it can eat the whole thesis.

In this lesson

  • You buy at the ask, you sell at the bid
  • Illiquid quotes are where accounts die
  • Market orders are a beginner trap on options

Read the full lesson in the app

The complete lesson, with worked examples, callouts, and a quiz to test yourself, is in Iron Condor Options.

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