Turn-of-month Effects

Turn-of-month Effects puts the calendar anomaly on the chart where it can be checked against the instrument actually traded. The window spans a configurable count of trading days on each side of the month boundary (the classic turn-of-month span of -1 through +3 by default), and every day inside it is shaded, tinted by that day position's historical mean when tinting is on. The dashboard carries the substance: per-position averages, win rates and sample sizes, window days against all others, and window-only versus buy-and-hold cumulative returns.

How to Trade the Turn-of-month Effects?

• Window start and end alerts: mark the boundary sessions for traders who time planned entries into the tilt, or hold shorts inside it to a higher bar.
• Day-by-day breakdown: each window day position carries its own statistics, so the window can be trimmed to the day positions that actually carried the tendency on this symbol.
• Window share of gain: the dashboard reports how much of the symbol's cumulative return accrued inside the window, the classic studies' headline number.

Turn-of-month Effects Settings

• Last Trading Days Of Old Month (default 1): sessions before the boundary; the classic academic definition uses only the final trading day.
• First Trading Days Of New Month (default 3): sessions after the boundary.
• Show Dashboard (on) and Show Day-By-Day Breakdown (on), with Location (Top Right) and Size (Small).
• Color Window By Historical Average Return (default on): per-day tint; disabled, the highlight stays a single neutral color.
• Show Day Position Labels (default off): prints -1, +1, +2 beneath the window bars.
• Window Transparency (default 85).

Frequently Asked Questions

How is this different from the January Effect?

How does the build know the month is about to end?

Which timeframes does it support?