The situation with Microsoft today demonstrates what can happen when trader sentiment changes.
There were 2 user queries about easy ways to gauge volatility and I suggest checking in with the new
VIXEN site as one way to see intraday flux. These charts are fractal, meaning you can set them up for any time frame...you just need to set up an account with freestockcharts.com.
Here's today's morning view of SPY and XLE:
First..go to the Calculations tab
Just be sure to run back to the Calculation tab, unclick the Auto Stop box, and RUN ALL MACROS again to return to the default rankings.
Meanwhile here are the results from last night's AUTO STOP run with a top 2 sort: