.......If I had bought SPY puts for daytrading today would that have worked, too?
Yes .......the 445 Put expiring today opened at $0.21. The current bid is $0.66.
Yes .......the 445 Put expiring today opened at $0.21. The current bid is $0.66.
Go with the 30 delta series a month out. On puts you'll earn on vols (if mkt drops) and with calls you should earn on sticky as long as you're trading index. If you're getting flat within a day or two there won't be any significant greeks outside of delta. Don't hold the vol into macro releases and you should be fine.
I almost spit out my water when I read
"welcome to the world of Theta"
- Theta had very little to do with the 445 Puts declining from $0.66 to $0.14.
- Most of the decline was due to the SPY going from about $444.81 to about $446.10 - up $1.29 in a very short period of time.
- Delta was the big influence on the options in this case.