Trade Sign Classification: How Order Flow Gets Signed

Pull a single day of time and sales for any active stock and you'll get a tidy column of prints: a price, a size, a timestamp, sometimes a venue code.…

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Order Flow Persistence: Reading Runs of Signed Flow

Watch a fast tape long enough and you'll see it: a stream of prints that keep lifting the offer, one after another, twenty or thirty in a row, and not…

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