GARCH
GARCH is a type of statistical model that attempts to forecast future volatility by relying on past price swings. With its complex equations, it scoops up market tremors and elegantly quantifies analysts' anxieties, yet its reliability is often left dangling with a question mark. Theoretically hailed as the savior of risk control, it actually stages a betrayal show by whipping up fat tails. Example use: Traders cling to GARCH and lose their peaceful nights when the model backstabs them.