The Greeks measure how an option’s price reacts to different forces. Here’s the whole family at a glance — a quick-reference cheat sheet, with links to the deep dives.
The first-order Greeks
Delta — price change per $1 in the underlying (and rough ITM probability). Gamma — how fast delta changes. Theta — daily time decay. Vega — sensitivity to implied volatility. Rho — sensitivity to interest rates (minor for short-dated).
The higher-order Greeks
Vanna — delta’s sensitivity to volatility. Charm — delta’s decay with time. Vomma — vega’s sensitivity to volatility. Color — gamma’s decay with time. See second-order Greeks for the full picture.
Delta/gamma = direction. Theta = time. Vega = volatility. The higher-order Greeks tell you how those change, and drive dealer flows.
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NoVo is a software tool for market analysis, not financial advice. This article is general education, not investment advice. Options trading involves substantial risk of loss, up to and including your entire capital. NoVo makes no guarantee of profit, win rate, or performance, and past results do not predict future outcomes. You are responsible for your own broker account, configuration, and trading decisions.
The member portal — delayed dealer levels with the gamma flip and the expected-move band on SPY, QQQ and IWM, plus sectors, movers and the week’s catalysts. NoVo’s Mid-Day Tape Review every trading day and the Week Ahead on Sundays. And the NoVo Discord: live discussion and NoVo’s daily dealer-map read.