Monday Effect
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The Hidden Timing Trap Tech Stock Investors Keep Getting Wrong
Yahoo Finance· 2026-02-03 15:20
Don’t invest in tech stocks on Mondays. At least, that’s what the data currently shows. But the data doesn’t always tell the whole story. Below, we’ll break down the details, showing why Monday’s are worse for tech stocks (on average), but also why you should probably consider ignoring this data. Plus, find out what you can do instead. Why Mondays Are Worse Than Other Weekdays Academic research going back decades has found average Monday returns are often lower than other days later in the week. Tech ...
Don’t Trade Stocks on This Day of the Week
Yahoo Finance· 2025-11-05 16:05
Investment Performance - An investment of $10,000 in the S&P 500 index at the beginning of 2005 would grow to $71,750 by the end of 2024, yielding an annual return of 10.4% [1] - Missing the best 60 days in the market from 2005 to 2025 would reduce the investment value to $4,712, resulting in a return of -3.7% [2] Trading Insights - Mondays are historically the weakest day for markets, often referred to as the "Monday Effect," where stocks tend to open lower [4][5] - Factors such as weekend news and investor sentiment contribute to downward pressure on the market at the start of the week [5][7] - Short-term traders should avoid selling on Mondays to prevent losses and consider buying stocks on this day to take advantage of lower prices [8] Optimal Trading Days - Tuesdays through Thursdays have shown stronger performance for trading, with Fridays often experiencing a bump as traders position themselves ahead of the weekend [9]