Graham's net-net strategy is

Glossary of contract bridge terms

Margin of safety principle: Buy below intrinsic value

Net present value

NPV = Sum of discounted cash flows - initial investment

delta hedging does

Delta hedging continuously adjusts a portfolio to eliminate directional risk

Market capitalization

Market capitalization = share price × shares outstanding

Net worth

Net worth = Total assets - Total liabilities

Value theory

Graham emphasizes intrinsic value as a company's true worth based on fundamentals