Put to Call Ratio vs NDX: 1 Month Charts: > > 6 Month Charts: > > Usually when the Put/Call ratio reaches within 5% of one of its Bollinger bands, the market is likely to reverse and make a move in the opposite direction. Since it is a contrarian indicator, one is supposed to bet on the market and most indices doing the opposite. That is you can likely expect the market to go up when the CPC reaches the upper Bollinger band and expect it to go down when it reaches the lower band. These charts will test the short term reliability of this indicator on the NDX.
The put to call reading will not update until after the market. Intraday readings can be found here each half hour: