Those 2.4m are likely held by brokers for day trading account.
Also shorting stocks like ORE is very profitable but risky due to clock work volitility ORE exhibits until it doesn't.
Much like online poker most get eaten alive but good number makes a killing.
Also some of the most profitable stocks to short are stocks that closes higher than open.
Of course there are stocks like VUL and MNS but those are rare occurance and feeding frency.
Shorters are not really interested in researching stocks that potentially can go down 20% over months. The best shorting stocks are stocks that move 5% in a day.
