The Pit

You take the book on the floor. Each tick the tape hands you the market — spot, the basis, implied vol, your net Greeks — and your margin, and you fill one order ticket: hedge the risk that will actually hurt you, and size it. Then the market moves and the P&L hits your margin. It starts with a routine futures hedge. By the end you'll face a short-gamma trap, a Fed-day vol bomb, a 2008-style credit event and a crash — often back to back. A delta-neutral book won't save you: you have to know which Greek is the threat. Every world of the course, live.

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MarginYour capital cushion. Every mark-to-market P&L swing hits it. Zero → a margin call, and you're carried off the floor.

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P&LYour running trading P&L. 50 is flat; trade the risks well to grow it, take losses and it falls.

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Desk standingThe risk desk's confidence in your book. Read each risk right to build it. Zero → they pull your book.

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Risk exposureHow much unhedged risk you're carrying (lower is better). Leave the wrong Greek open and it climbs; past 100 the desk force-liquidates you.

You run the book. The tape moves, the Greeks bite, margin is real. Survive the session.