Does It Matter Which Day of the Week You Trade?
The Weekday Patterns tool shows the median and average return for each day of the week, Monday through Friday, for any stock or ETF, backed by years of data.
Is Monday really the worst day to hold your position? Is there a midweek pattern that repeats? Do Fridays behave differently because of weekend risk? These are questions every active trader has wondered about but few have actually tested.
Day-of-week effects have been studied in academic finance for decades, but almost always for the broad market as a whole. The pattern for a single stock or sector ETF can look very different from the index average, and most traders never check the names they actually trade.
Until now, getting day-of-week return data for a specific ticker meant downloading the full price history and running the calculations yourself, for every weekday.
We built something better.
Day-of-week return breakdowns for any stock or ETF, with a VIX regime filter and a market-wide scan.
The median and average daily return for each weekday, Monday through Friday. Toggle between the two.
A bar chart of all five weekdays, green for positive days and red for negative, so the pattern reads at a glance.
A heatmap with every year a row and every weekday a column, so you can see how stable the pattern is over time.
Split the weekday pattern by volatility regime: all data, VIX under 20, 20 to 30, or above 30.
The landing heatmap scans a whole watchlist at once, every name a row and every weekday a column.
Works on any stock or ETF, with major names built in and a custom box for anything else.
Pick a ticker and see which weekday has historically run hot and which one dragged.
Switch to the year-by-year heatmap to see whether the weekday edge held across years or came from a single stretch.
Switch the VIX regime filter to see whether the pattern only shows up in calm tape or only when volatility spikes.
Open the landing heatmap to spot which names share a weekday pattern before you pick one to trade.
We welcome inquiries from traders, investors, institutions and affiliates
interested in learning more about our tools.