: Generally falls between Tuesday and Friday in performance. Friday (Best for Selling) Success Rate : Ends "green" 54.6% of the time.
: Patterns shift during bear markets, where Mondays and Tuesdays may experience the highest volatility and steepest drops. best and worst day of the week to buy stock
: The "Monday Effect" was significantly more pronounced in the 1980s and 1990s but has weakened as markets become more efficient and technology allows for 24/7 news consumption. : Generally falls between Tuesday and Friday in performance
: Many experts from Chase suggest that dollar-cost averaging (DCA) —investing the same amount regularly regardless of the day—is more effective for long-term growth than trying to time daily volatility. : The "Monday Effect" was significantly more pronounced
Based on 98 years of S&P 500 data (through 2026), daily performance trends typically follow these patterns: Average Return : -0.07%. Trend : Over 51% of Mondays since 1928 have finished lower.
: Trading spreads and commissions often exceed the tiny percentage differences (hundredths of a percent) found in day-of-the-week trends.
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