In a world where everything seems to be highly correlated, here's a new one: IBM's retail...

|By:, SA News Editor

In a world where everything seems to be highly correlated, here's a new one: IBM's retail analytics practice has uncovered a strong connection between the VIX and jewelry sales. Big swings in the stock market, along with a corresponding increases in the VIX, appear to be highly correlated with increases in jewelry sales two months later - and recent data suggests sales will be strong this holiday. Worth watching: Zale (ZLC), Signet (SIG), Tiffany (TIF), Harry Winston Diamond (HWD).