Among the largest underlying components of VOO, in trading today Citigroup Incorporated ( NYSE: C) is up about 2.3%, Berkshire Hathaway Class B ( NYSE: BRK.B) is up about 0.8%, and Cisco Systems Incorporated ( NASD: CSCO) is lower by about 0.1%.

FORBES: Notable ETF Inflow Detected - VOO, C, BRK.B, CSCO

Among the largest underlying components of XLF, in trading today Berkshire Hathaway ( BRKZB) is up about 1.4%, and Goldman Sachs Group Incorporated ( GS) is higher by about 1.4%.

FORBES: Financial Sector Gets Some Investor Love