Subject: Re: Bottom detector
A simple short-term bottom detector from a number of years ago is discussed in this thread:
https://discussion.fool.com/t/...

The general idea:
- The NYSE bullish percentage index must go below 31
- Wait for it to rise 6% from its low

So, if the $BPNYA drops to 25 the buy signal would occur at
25 x 1.06 = 26.5

Zee provides backtested returns using QQQ.

DB2