To make that play, in my mind, you'd have to presume 280 to be the low w/275.50 the 200 DMA support below. Not clear enough of a "shot" for my money just now....more "mid range, not convinced any play would be worth the risk".
Not keen on this one. SPY dropped below the 50, then bounced back above it, now below it again. If the 50 day were going to act as "support", not going a great job of it here. That said, the 200 Day @ 275.50 could be good.
%% Exactly Scatap, fine for investment[SPY/ 200dma]]; but very late in the year for long trades/SPY trade + more late now than when i posted that. ,