With this pair up the last 9/10 months and the tech bubble being up 10 months in a row before blowing the top... It is perhaps time to start thinking about SPX outperforming the NDX.
This means it is a directionless position. How this is played out is short NDX and long SPX in equal weighting.
i.e a profitable position will be when the SPX goes up more than the NDX or if the NDX drops more than the SPX.
This may take a few months to pan out, however even *IF* this is a paradigm shift there will be a pullback.