When one exchange's offer or bid is taken out (fully traded), there is no guarantee that the same offer or bid will continue to trade on all remaining exchanges. If you took out the remaining shares on all remaining exchanges every time any one exchange's offer or bid traded out, you will lose money -- I've tested this exact strategy before.
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What do you mean inadvertently? No way is that by accident.
When one exchange's offer or bid is taken out (fully traded), there is no guarantee that the same offer or bid will continue to trade on all remaining exchanges. If you took out the remaining shares on all remaining exchanges every time any one exchange's offer or bid traded out, you will lose money -- I've tested this exact strategy before.