I was way late to the party buying puts today because I thought it'd bounce when my futures indicators hit oversold, but I did catch part of the initial drop, and then re-entered the trade when SPX broke support and financials lagged a bit.
Figured XLF had to also make a new low, and the "h" pattern gave me a target around $49 - $49.05 so I flipped my puts there.
If indicators don't work, you gotta go with chart formation. That's the best you can do....