This is a quick update to say that after looking at past price patterns in the context of markets making 52 week lows, that with today's gap down I would estimate a higher chance of a continued sell off into the close.
But buying at the close today has a very profitable (volatile) short term set-up for a price rebound in stocks.
The idea would be to buy at today close and then sell at the first profitable close (or the following open).