Well, today was a more "normal" day, with the Dow having "only" one nutty move, rising 100 points from 3:51 to 3:57.

Since all the relevant movement in the market seems to happen in the last 15 or 30 minutes of the trading day, maybe the market should shut down for all but one hour each session.  Open at 3pm and close at 4pm.  Since all the other hours don't seem to matter, why not?

Yesterday, I was unable to access graphs I wanted to post on volatility.

The first is intra-day volatility, or the difference between the top and the bottom of the market intra-day.  The second is rolling one-month annualized volatility.  As you can see, both have moved appreciably higher. Not that you did not already know that.