Artful Dodger
"Neko no me"
One market dynamic I don't have even the start of a mental model, is this idea of a fight for a price level here in the middle of the week. If it were Friday, and looking at the max pain charts, then market makers keeping the shares under 650 going into close makes a ton of sense to me.
There is an alternate explanation (which gets little to no attention in this Forum): today is the Tuesday before the 2nd Friday of the S&P rebalancing month (Mar, Jun, Sep, Dec).
Thus, today's Close marks the entry into the "freeze" period where all components of the S&P 500 have their weights fixed (even though trading in the underlying continues, S&P DJI defines the weights as of the Close today).
These weights will be announced on Friday (2nd Fri, as usual) with the release of the pro-forma files. The 'freeze' period ends on the 3rd Fri, and the rebalance date is the following Monday (Dec 21st this year), also the day of the addition of TSLA to the index.
Posted extensive links to S&P DJI source pdf's yesterday. Browse my comment history to see them.
Cheers!