◆ Price is what you pay, value is what you get◆ Support is a zone, not a line◆ Volume confirms moves◆ Risk first, reward second◆ Earnings ≠ cash flow◆ Diversify across uncorrelated risks◆ RSI measures momentum, not direction◆ P/E needs context◆ Price is what you pay, value is what you get◆ Support is a zone, not a line◆ Volume confirms moves◆ Risk first, reward second◆ Earnings ≠ cash flow◆ Diversify across uncorrelated risks◆ RSI measures momentum, not direction◆ P/E needs context

Glossary

Terms, defined plainly

Intrinsic valueOptions: The amount an option is in the money: max(0, S − K) for calls, max(0, K − S) for puts.; Lesson: Premium: intrinsic value and time value
Time valueOptions: Premium minus intrinsic value; decays toward zero at expiration.; Lesson: Premium: intrinsic value and time value