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New dark pool rules called into question

When Canada implemented new dark pool rules last fall, the expectation was that they would improve the trading experience. But a new study suggests that market quality hasn’t improved, yet hidden trading costs have climbed.

For those who don’t know much about dark pools, they allow trades to be executed away from the spotlight of the regular ‘lit markets’. In other words, they allow trades to happen in secret and get reported after the fact.