Nasdaq 100 (NDX) First support is at 1896.71. First resistance is at 1939.77. For the Nasdaq 100 Index Tracking Stock (QQQQ) first support is at $46.72. First resistance is at $47.68. S&P 500 (SPX) First support is at 1115.71. First resistance is at 1128.77. For the Standard & Poor's Depository Receipts (SPY) first support is at $111.80. First resistance is at $113.18. Russell 2000 (RUT) First support is at 645.82, the 200-day moving average. First resistance is at 672.16. For the iShares Trust Russell 2000 Index Fund (IWM) first support is at $64.58. First resistance is at $67.27.