Like its sister fund IEZ, IEO charges 47 bps annually and trades with reasonable spreads (5 bps).

FORBES: Riding The Energy Bull With The Right ETF

Among the largest underlying components of IEO, in trading today Occidental Petroleum ( OXY) is down about 1.6%, and Apache ( APA) is lower by about 0.5%.

FORBES: Investors Exit Energy Holdings

Among the largest underlying components of IEO, in trading today Occidental Petroleum Corporation ( OXY) is down about 1.1%, and Apache Corporation ( APA) is lower by about 0.3%.

FORBES: Has the Well Dried For Oil & Gas ETFs?

Among the largest underlying components of IEO, in trading today Occidental Petroleum Corp ( NYSE: OXY) is up about 0.6%, Phillips 66 ( NYSE: PSX) is up about 0.7%, and Apache Corp. ( NYSE: APA) is lower by about 0.3%.

FORBES: IEO, OXY, PSX, APA: ETF Outflow Alert

Among the largest underlying components of IEO, in trading today Noble Energy, Inc. ( NYSE: NBL) is up about 0.4%, Chesapeake Energy Corp. ( NYSE: CHK) is up about 0.8%, and Valero Energy Corp. ( NYSE: VLO) is higher by about 0.6%.

FORBES: IEO, NBL, CHK, VLO: Large Outflows Detected at ETF