SPY Last Price Toggling

Discussion in 'Trading' started by giggollo, Feb 28, 2007.

  1. SPY last price keeps toggling between a value between the bid/ask and another value totally outside of the bid/ask and sometimes as far as 50 cents away. This is happening once every second or two on multiple quotes sources (ie not out-of-market prints)
    Right now toggling between 141.22 and 140.7.