RSP/SPX*30

This indicator shows relative strength of an equal-weighted sp500 w.r.t. the market capitalization weighted sp500. In bear markets, the market as a whole is doing well, and RSP does 100% better than SPX. However, if the ratio dips below 1.0, this is signs that a few big players are carrying the market.

n.b. i weighted by 30 for display purposes.