In October 1987, global equity markets lost roughly $1.7 trillion in a single day - and the traders who survived with their portfolios intact were almost uniformly the ones holding derivatives. These instruments are simultaneously the most misunderstood and most useful tools in modern finance: they let you control enormous positions with a fraction of the capital, insure against catastrophic losses, and generate income from stocks that aren't moving. This course takes you from the mechanics of how derivatives are priced and structured to the specific strategies - protective puts, covered calls, collars, and the Greek sensitivities beneath them - that professional risk managers use to stay solvent when everyone else is panicking.