Are Tuesday to Thursday the Best Days to Trade?

False.

The claim as it is usually statedTuesday to Thursday are the most active, trending days.

Bigger movement in only 2 of 19 markets. The midweek is not measurably more active than Monday and Friday.

What the data shows

Across 19 markets: direction: 3 of 19 markets differ beyond chance · movement: bigger in only 2 of 19. Median movement in the window, 101% of a normal hour.

Market	In the window	Rest	z	Movement	Samples
GBP/JPY	51.3%	50.4%	2.6	100% of normal	59,926
SPX500	51.7%	53.1%	-2.6	97% of normal	23,565
GBP/USD	50.0%	49.4%	2.1	90% of normal	74,852
EUR/GBP	49.3%	48.6%	1.7	104% of normal	34,988
USD/CHF	49.8%	49.2%	1.5	112% of normal	46,368
USD/JPY	50.6%	50.2%	1.3	103% of normal	65,483

Strongest six by statistical strength, whichever way they point. z measures how far from chance a result sits — we treat |z| ≥ 3 as significant, and print it even when it is nowhere near.

Who says it

Audacity Capital · XTB

How this was measured

Every claim here reduces to a window on the clock or the calendar, so it can simply be checked. We compare the claimed window against the rest of the week on 23 years of hourly data across 19 markets, measuring two separate things the folklore tends to conflate: direction (does the window close higher more often?) via a two-proportion z-test, and movement (is the average move bigger or smaller?). A window can be perfectly ordinary in direction and genuinely quieter in movement — saying which is the entire point.

The bar here is |z| ≥ 2, deliberately more lenient than the |z| ≥ 3 this site applies to its own numbers: when testing someone else's claim, failing to reject it even at a lenient bar is the stronger statement.

Check any hour yourself →

Free on the four major pairs, with the full 23 years and the sample size on every number.