1. Alpha (α) is active return on an investment, compared with a suitable market index.
2. Beta (β) is risk arising from exposure to general market movements as opposed to idiosyncratic factors.
3. Delta (δ) is change in price of an option, in relation to underlying asset.
4. Epsilon (ε) is mean daily price change for an asset, to value of its yearly high price minus its yearly low price.
5. Gamma (γ) is convexity of a derivative's value, in relation to underlying asset.
6. Eta (η) symbol is used to indicate a new stock listed within past 52 weeks.
7. Iota (ι) symbol is used to indicate that a dividend was paid after a stock split.
8. Kappa (κ) is change in price of an option to a 1% change in expected volatility.
9. Lambda (λ) is partial derivative of option price with respect to option volatility.
10. Omega (Ω) is change in price of an option with respect to price of underlying.
11. Rho (ρ) is option’s or derivative’s price changes with respect to risk-free interest rate changes.
12. Sigma (Σ) symbol is used to indicate that stock has been split or that company has paid a stock dividend of at least 25% within past 52 weeks.
13. Tau (τ) symbol is used to indicate market value as of distribution date of stock dividends paid during preceding 12 months.
14. Theta (θ) is change in an option price to decrease in time to expiration.
15. Upsilon (υ) symbol is used to indicate that it is an American Depository Receipt (ADR).
2. Beta (β) is risk arising from exposure to general market movements as opposed to idiosyncratic factors.
3. Delta (δ) is change in price of an option, in relation to underlying asset.
4. Epsilon (ε) is mean daily price change for an asset, to value of its yearly high price minus its yearly low price.
5. Gamma (γ) is convexity of a derivative's value, in relation to underlying asset.
6. Eta (η) symbol is used to indicate a new stock listed within past 52 weeks.
7. Iota (ι) symbol is used to indicate that a dividend was paid after a stock split.
8. Kappa (κ) is change in price of an option to a 1% change in expected volatility.
9. Lambda (λ) is partial derivative of option price with respect to option volatility.
10. Omega (Ω) is change in price of an option with respect to price of underlying.
11. Rho (ρ) is option’s or derivative’s price changes with respect to risk-free interest rate changes.
12. Sigma (Σ) symbol is used to indicate that stock has been split or that company has paid a stock dividend of at least 25% within past 52 weeks.
13. Tau (τ) symbol is used to indicate market value as of distribution date of stock dividends paid during preceding 12 months.
14. Theta (θ) is change in an option price to decrease in time to expiration.
15. Upsilon (υ) symbol is used to indicate that it is an American Depository Receipt (ADR).