Options implied volatility on Silver Wheaton Corp. is up 9.5% at 56.33% ahead of earnings.

FORBES: Bulls Swing For The Fences With Priceline, Silver Wheaton

Silver Wheaton Corp shares are currently trading off about 4.4% on the day.

FORBES: Silver Wheaton Corp Stock Getting Very Oversold

Silver Wheaton Corp shares are currently trading down about 5.2% on the day.

FORBES: Silver Wheaton (SLW) Shares Cross Below 200 DMA

Main components of the fund include Barrick Gold Corp ( ABX), Goldcorp ( GG), Newmont Mining Corp ( NEM) and Silver Wheaton Corp ( SLW), all of which sustained substantial losses on Tuesday.

FORBES: Gold Miners Suffer as Selloff Gains Speed