The dynamics at play for the day make it literally impossible to predict.
On one hand:
SFIO boardmarks still rising. Sentiment/confidence high. Volume drying up. Trading around bottom of the current cycle.
On the other hand:
Friday always has traders closing positions. 3 day w/e may experience a few degrees more closing positions. Last trading week of the month.
There's an old saying: Sell in May and go away.
There's no telling just how many SFIO investors might apply that. Some investors begin their summer vacations this w/e, since the stock market can be somewhat dull during the summer.
Without news, the annotated chart that platero posted is probably the best indicator to go by.