Every era of financial markets has been defined by who provides liquidity. Floor traders gave way to electronic market makers ...

Stella Osoba is the Senior Editor of trading and investing at Investopedia. She co-founded and chaired Women in Technical Analysis. She has 15+ years of experience as a financial writer and technical ...

Discover how the Luhn Algorithm verifies credit card accuracy, supports secure transactions, and helps prevent errors in inputting Social Security numbers.

Day trading might sound like a fun way to make a living, but it’s a hard game for new traders to break into. Not only do day traders need high-tech stock scanners to locate stocks with potential, but ...

Many people interested in trading stocks wonder if there are any rules about when to buy or sell stocks. While some vague timing guidelines do exist, the best time to buy or sell a stock really ...