Those who use options. The big 7 are now using every other day expiration dates, not just weekly ones. Remember when they were all monthly. It is getting more complicated with every change. Be careful to look at the dates now.......jk

They are "trading" volatility. It has been getting where there is quite a bit of short-term options on many stocks. Some are measured in hours, and even minutes. And every quarter, particularly as Nvidia reports, things get lively.

Been learning trading futures…. Running on 1 hour chart then entry and exit on 5 mins charts sometimes 1 min!!!!! Talk about sniping trades!!!!

A lot of that is not even people but computers. I try to buy on puts and sell on calls, not always. But i don't hold for very long if possible. the rumor vs the news thing.....jk