As of 2008, options market makers are not allowed to naked short. [0] The only remaining exemptions to restrictions on naked short selling are for equity market

As of 2008, options market makers are not allowed to naked short. [0] The only remaining exemptions to restrictions on naked short selling are for equity market makers. These market makers are still subject to delivery requirements (T+2). Plus, most/all aim to end each day flat [0] section III of https://www.sec.gov/investor/pubs/regsho.htm https://www.sec.gov/investor/pubs/regsho.htm