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📜 SIDE QUEST · DEEP DIVE
· ◆◆◆ · ~10 min
Put–Call Parity, Derived
Build the arbitrage table that proves parity.
"Two portfolios, identical at expiry — so identical today."
A short lesson, then a quiz. ❤️×3 — a wrong answer costs a heart; finish with at least one left and the level is yours. Lose all three and you'll have to try again. Replay any time — XP and cleared levels are never lost.