Calculating prodigies are individuals who are exceptional at quickly and accurately solving complex mental calculations. With positron emission tomography (PET), we investigated the neural bases of ...

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 ...

James Chen, CMT is an expert trader, investment adviser, and global market strategist. Option margin is the collateral (cash or securities) an investor must deposit before writing or selling options ...

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 ...

Risk management is a crucial concept every successful investor should champion. And it all starts with correct position sizing. Position sizing is vital to managing risk and avoiding the destruction ...