Buy S&P 500 @ 1790, Sell S&P 500 @ 1796

Buy S&P 500 @ 1790 if it stays above & goes higher, for 30 minutes expiration or less
Sell S&P 500 @ 1796 if it stays below, for 30 minutes expiration

Risks: S&P 500 might break & stay above temporarily, then drop (Previous market pattern)
Support @ 1790 is weak