Should CLH extend its journey lower, the sentiment on the Street leaves the stock vulnerable to a bullish backlash.

FORBES: Clean Harbors Shares Could Be Polluted By Excessive Optimism

However, there could be more downgrades on the horizon for CLH.

FORBES: Clean Harbors Shares Could Be Polluted By Excessive Optimism

Among the largest underlying components of IWO, in trading today Netlogic Microsystems Inc ( NASD: NETL) is up about 0.1%, SuccessFactors, Inc. ( NYSE: SFSF) is trading flat, and Clean Harbors, Inc ( NYSE: CLH) is higher by about 1.1%.

FORBES: iShares Russell 2000 Growth Index Fund Experiences Big Outflow

Among the largest underlying components of IWO, in trading today Clean Harbors, Inc ( NYSE: CLH) is up about 0.4%, Rosetta Resources, Inc. ( NASD: ROSE) is off about 1.3%, and NU Skin Enterprises, Inc. ( NYSE: NUS) is higher by about 0.5%.

FORBES: IWO, CLH, ROSE, NUS: Large Outflows Detected at ETF