BPNDX, BPCOMPQ, VXO, VIX, VXN vs. SOX on 3 year daily charts. Low readings on the BP Indices plus 6% reversals theoretically show buy opportunities for the SOX. The reverse is true for market tops. The volatility indices move in an inverse relationship to the SOX. Look for spikes higher in fear indices (volatility) to mark market bottoms while market tops are more difficult to time: