Companies seeing a skew towards puts in the previous session: PowerShares QQQ Trust (QQQQ), American Capital Ltd (ACAS), CSX Corp. (CSX), Wachovia (WB), J.P. Morgan Chase & Co. (JPM), Morgan Stanley (MS), Procter & Gamble (PG), Alcoa (AA), Pfizer (PFE), Constellation Energy Group (CEG), Lehman Brothers Holdings Inc (LEH), NetApp Inc (NTAP), Las Vegas Sands Corp. (LVS), BB&T Corp. (BBT), McDonald's (MCD), Deere & Co (DE), American Commercial Lines Inc. (ACLI), Wells Fargo & Co (WFC), Xilinx (XLNX), Archer-Daniels-Midland (ADM), Hewlett-Packard (HPQ), General Electric (GE), Dell (DELL), KEYCORP (KEY), Autodesk (ADSK).

Companies seeing a skew towards calls in the previous session: Amgen (AMGN), SPDR Gold Trust (GLD), Chesapeake Energy (CHK), Health Net (HNT), Fluor Corp. (FLR), Wal-Mart Stores (WMT), Canadian Solar Inc. (CSIQ), Goldcorp Incorporated (GG), Barrick Gold (ABX), United States Steel Corp (X), Anadarko Petroleum (APC), OmniVision Technologies (OVTI), Fannie Mae (FNM), Schering Plough Cp (SGP), Cephalon (CEPH), Applied Materials (AMAT), Akamai Technologies (AKAM), General Motors (GM), Gold Fields. (GFI), Verizon Communications (VZ), Kinross Gold (KGC), AK Steel Holding Corp (AKS), Valero Energy (VLO), Yahoo! (YHOO), (CREE).

This filtered scan is based on the International Securities Exchange (ISE) buy-to-open data. It looks for stocks where the previous day's put volume on the ISE is at least twice as great as the call volume. It then sorts the stocks based on the put volume. Since this is buy-to-open data, this can be a good source for finding stocks where skepticism is emerging. Of particular interest to me would be situations where we see put activity on stocks that are still in intermediate-term uptrends. This would be a potentially encouraging sign from the contrarian perspective.

This filtered scan is based on the International Securities Exchange (ISE) buy-to-open data. It looks for stocks where the previous day's call volume on the ISE is at least twice as great as the put volume. It then sorts the stocks based on the call volume. Since this is buy-to-open data, this can be a good source for finding stocks where optimism is emerging. Of particular interest to me would be situations where we see call activity on stocks that are still in intermediate-term downtrends. This would be a potentially cautionary sign from the contrarian perspective