Everytime SPX/USOIL hit some extreme (upper BB), Crude oil tends to be bullish the following months and SPX becomes choppy.
The move though can be short lived like in 1998 and recently in 2015.
It will be interesting to see how this will play out.
Many very interesting times when the BB tap signals a bottom in crude and also a bunch of time that it doesn't. Money management is the key (as always). It looks like the streak in 1993, 1997 and now have a lot in common - it hits the upper band and doesn't stop.