Portfolio Greeks are the sum of all individual Greeks across your entire portfolio of options. They show your total exposure to price, time, and volatility changes.
If you own:
Your portfolio delta = (5 × 0.6) + (3 × -0.5) = 3.0 - 1.5 = 1.5
This means your total position acts like owning 150 shares of stock (since each delta is per share, and you control 100 shares per contract).
Portfolio Delta — Shows your directional exposure. Positive = bullish, negative = bearish, zero = neutral.
Portfolio Gamma — Shows how fast your delta is changing. High gamma = position is more sensitive to price swings.
Portfolio Theta — Shows how much you make or lose per day from time decay. Positive = you profit from time, negative = time hurts you.
Portfolio Vega — Shows how much you gain or lose if implied volatility rises by 1%. Positive = you profit if IV rises, negative = you lose if IV rises.
Successful traders track portfolio Greeks throughout the day. They know:
