If you were in the trading room yesterday at the late afternoon selloff, you would have noted that that bit of selling was not done by strong hands and was bought by the bigger players.
Here's the chart which will show the process.
The result was the market did not move lower at the open today.
Like yesterday morning, the top pane also called the Delta pane shows reduced magnitude of buy/ sell pressure. This is the reason the market is drifting today and we call it in Market profile as local to local trading.