As the weekend approaches, many participants close positions to avoid gap risk. Liquidity thins, spreads can widen slightly, and price often drifts or chops with less conviction.
For scalpers, the risks are practical. Fills may be worse, and moves with little follow-through produce false signals. A breakout at 3pm New York on a Friday carries a different probability from one at Tuesday's London open.
There is also positioning flow. Month-end Fridays or those near big events add distortions. Position squaring can produce a late-day move that has nothing to do with the week's trend.
Some traders simply stop on Friday midday. Others trade smaller and take profits earlier. The right approach depends on the journal: do results fall off late Friday, or hold up?
A rule to be flat before the close is almost universal, since weekend gaps and wide spreads at the end of the week punish stragglers.
It is a good moment to review the week rather than force one more trade.
What does late Friday look like in the journal, and is there a rule about it?