S&P Comstock or PC Quote and Townsend Analytics Users Message Board

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Non-Tech : S&P Comstock or PC Quote and Townsend Analytics Users

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To: Jon Tara who wrote (172)	3/6/1998 10:14:00 AM
From: spinynorman1323	Read Replies (1) of 417

Jon, The exchanges disseminate quote and trade information via separate data feeds, a bid/ask line and a last sale line. SIAC reports NYSE/AMEX information via the CTS (consolidated trade system) and the CQS (quote) lines. Not sure of the mechanics behind the NAZ but they do report trades and quotes separately. This probably explains the anomaly and it most likely wasn't specific to the Townsend Analytics feed. Same with OPRA (options) if my memory serves me correctly. Mark

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