Actually, shorting and short interest is very murky, even for broker dealers. It's pretty incredible how shady that business is.
Ok I see. Along those lines... Say I was a director (or even an employee I guess) in a company with an option to purchase and exercise shares at a later date and the stock is skyrocketing today but I think its going to drop for whatever reason. Is it legal for me to short the stock and basically put myself in a box position to protect my gains?
I'm not sure. I used to trade convertible warrants. They are priced like options but hard to borrow, so they generally trade with a premium. After I bought a block of warrants, I'd hedge them with shorting the stock. It is not only for insiders.
What company is providing real-time short interest forecasts? I currently get a daily drop from https://ihsmarkit.com/products/securities-finance.html So yeah I've found value in T-1 short interest data and so definitely would with real time data but not aware of anyone providing it
Since the brokers are facilitating the borrowing, I would assume they would know, especially the big ones serving hedgefunds https://www.prnewswire.com/news-rel...ics-to-nasdaq-listed-companies-300661893.html