Below is a three month price history chart comparing the stock performance of SPN vs.

FORBES: Superior Energy Services Larger Than S&P 500 Component Assurant

At the closing bell, SPN is down about 3.2%, while AIZ is trading flat on the day Wednesday.

FORBES: Superior Energy Services Larger Than S&P 500 Component Assurant

Below is a three month price history chart comparing the stock performance of CKH, versus SPN and PVX.

FORBES: SEACOR Holdings Inc (CKH) Shares Cross Below Book Value

Below is a three month price history chart comparing the stock performance of CPNO, versus SPN and KEG.

FORBES: Copano Energy LLC Stock Getting Overbought

Below is a three month price history chart comparing the stock performance of SPN, versus SLB and EPD.

FORBES: SPN Stock Crowded With Sellers

According to the ETF Finder at ETF Channel, SPN and AIZ collectively make up 1.14% of the WisdomTree MidCap Earnings Fund ETF (EZM) which is lower by about 1.3% on the day Wednesday.

FORBES: Superior Energy Services Larger Than S&P 500 Component Assurant