For those of you who do not know what this means. The person short MUST BUY share in order to cover his short sales. A short loses money every time the share price goes up.
Knowing this, we can expect to see these 100 million shorts having to buy shares and cover soon. If the share price climbs to fast, you get what is known as a short squeeze and many shorts are buying like crazy in order to cover. This usually causes a large spike in volume and share price.
Those buying now or who are already holding shares will be rewarded with a nice profit when this happens.