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by ElliotM 458 days ago
I suspect that customer service bot is incorrect. As also noted on this page[0], all dark pool trades are published to the consolidated tape, which appears to be part of the polygon API.

As an aside, the behavior you’re seeing might actually be causal- a large print appearing on the tape likely causes automated systems to widen out their quotes. Or alternatively, if the trade is through the NBBO, you’re seeing the top of the book (the protected quote) being swept in compliance with RegNMS.

[0] https://www.finra.org/investors/insights/can-you-swim-dark-p...