Cost basis is the original purchase price of an asset. Tracking cost basis is key to tax-efficient investing. Many, or all, of the products featured on this page are from our advertising partners who ...

Adam Hayes, Ph.D., CFA, is a financial writer with 15+ years Wall Street experience as a derivatives trader. Besides his extensive derivative trading expertise, Adam is an expert in economics and ...

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Learn how to calculate a stock's intrinsic value step-by-step, using Apple as an example. Discover Warren Buffett's method for smart investing! Republican signals support for Trump impeachment ...

Convert your interest rate to a decimal for accrued interest calculations. Use your daily interest rate and account balance to find interest due. Adjust calculations for varying balances using average ...

Cost basis affects capital gains taxes on investments. Cost basis varies by investment type and whether you purchased the asset or received it as a gift or inheritance. Optimizing cost basis can ...

Residual value is the estimated value of an asset at the end of its useful life. It's used to figure out things like the value of a car at the end of a lease or how much equipment is worth after it's ...