sec.gov

4kmg5 TIL The 200+ yr old open-outcry system that the NYSE used was disrupted by an entrepreneur who created a digital exchange that is what ETFs trade on now, and has replaced the often corrupted system that existed for generations.
6944Z TIL That Whistleblowers can make huge amounts of money from the SEC, if they voluntarily provide original, timely and credible information
R7GpQ TIL: A hedge fund has 35 days to close out a "failure to deliver" on a short sale.