They said 82 million shares were traded. That doesn't mean 82M trades. A trade often has a quantity higher than 1 share. It could be (say) 82 thousand trades wi

They said 82 million shares were traded. That doesn't mean 82M trades. A trade often has a quantity higher than 1 share. It could be (say) 82 thousand trades with an average quantity of 1000 shares. As far as system performance is concerned, number of trades matter, number of traded shares don't.