Learn how theta in options measures time decay, why it accelerates near expiration, and how traders can account for time in a trade.

Learn how Vega measures an option's sensitivity to implied volatility and how changing volatility can affect option prices.

Confused by option Delta? Learn how Delta affects option prices and use it to better understand your trade's sensitivity to stock movement.

Not sure why option prices change when stocks barely move? Learn how implied volatility affects options premiums and trade decisions.