US Stocks Flirting With Fourth Weekly Decline: It’s only Wednesday, Sep. 23, but the downside bias for US equities is building. At today’s close, Vanguard Total US Stock Market (VTI) shed 2.6% for the week so far. Today’s sharp pullback more than reverses two days of moderate gains and so it doesn’t take a raging bear to imagine that VTI is flirting with its first run of four straight weekly declines in more than a year.