ProShares UltraShort Silver (ETF) ZSL gained 5.92% today, as silver traded sharply lower and ProShares UltraShort Gold (ETF) GLL added 4.81% on the weakness in gold. After a huge rally in both gold and silver, investors decided that it is time for some profit taking. Direxion Daily Real Estate Bear 3X (ETF) DRV jumped 5.74% as the real estate stocks surrendered yesterday's gains. Boston Properties, Inc. BXP dropped 3.01%, and closed at $86.50. Simon Property Group, Inc SPG fell 2.96%, and Equity Residential EQR lost 2.51%. ProShares UltraShort DJ-UBS Crude Oil ETF SCO jumped 4.55% on Tuesday, and crude oil fell below $90. SCO closed at $10.57, and had a volume of 3.13M traded shares.