That's the government's claim, more or less. The article says that's not evident from the actual trades done: he may have simply changed his mind after the orde

That's the government's claim, more or less. The article says that's not evident from the actual trades done: he may have simply changed his mind after the orders didn't get hit. A piece of evidence the article gives for this is that much of the filling of his second order was later, well after algos had a chance to see his cancellation. So there was no need for any spoofing anyway.