Sure, in hindsight.
Sure about that? I've seen research suggesting otherwise. Also in my own research, although I can't say it's an hard edge on its own without other metrics/factors considered.
There's a weekly cycle in the market, though.
Usually, but not always of course, you get the week low/high early and late in the week.
For example, for a week going from high to low by end of week, you get the week low on Thursday or Friday 81 % of the time. That's statistically significant in my book. So far, this is that type of week. Barring a complete reversal from here I'll be expecting the week low this week on Thursday or Friday.
Let's see how the week develops.
PS: For a week going from low to high by end of week, you get the week high on Thursday or Friday 84 % of the time. Dataset dates back to 2005. This is for ES / SPX.