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by pclmulqdq 932 days ago
As far as I know, Knight was unique in that its orders were obviously stupid, but not obviously mispriced or mis-sized. It's not a case of a clear fat-finger error that would be visible to other market participants.

I know that in many markets, the exchange will reverse your trades if the counterparty made an obvious, visible error (eg $0 ask price on a limit order).