Comment on New stock market for long-term investors/reducing high-frequency tradingparentComments−yummyfajitas15yYou can't pay more - it's illegal (see RegNMS). You must buy on exchange B before buying on exchange A.−andrew115yThere are markets outside of the US though, where it would be possible to buy on the more expensive exchange.
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You can't pay more - it's illegal (see RegNMS). You must buy on exchange B before buying on exchange A.
There are markets outside of the US though, where it would be possible to buy on the more expensive exchange.