>That makes no sense to me. If they really wanted to buy they could use another broker? That's assuming you have multiple accounts in brokerages, and multiple

>That makes no sense to me. If they really wanted to buy they could use another broker? That's assuming you have multiple accounts in brokerages, and multiple other ones also have blocked buys (for example Interactive Brokers). Market will be dropping if significant number of people who want to buy are unable due to third party actions, that's exactly what's market manipulation.