Explore common Python backtesting pain points, including data quality issues, execution assumptions, and evaluation ...

If you plan on getting involved in day trading, then having access to reliable and feature-rich charting platforms can be an essential tool. With numerous day trading chart providers available in the ...

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 ...

Laurie Sepulveda is a MarketWatch Guides team senior writer who specializes in writing about insurance, investing, personal loans, home equity loans, mortgages and banking. She lives in North Carolina ...

Thomas J. Brock is a CFA and CPA with more than 20 years of experience in various areas including investing, insurance portfolio management, finance and accounting, personal investment and financial ...

With close to a decade of writing and editing experience, Maisha specializes in service journalism and has produced work in the lifestyle, financial services, real estate, and culture spaces. She uses ...

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 ...

On the heels of Valentine's Day 2026 comes Presidents Day. Officially known as "Washington's Birthday," it was the first holiday to be named after an individual president. It was established in 1879 ...

* Post-trade starts at 13:00 and closes at 13:30 CET. **Post-trade starts at 13:10 and closes at 13:30 CET. ***Post-trade starts at 12:55 and closes at 13:30 CET. ****Post-trade starts at usual time ...

S&P 500 concentration risk is surging—the top 10 now make up 41%. See a quant-optimized 15-stock barbell from Strong Buy picks for better diversification.