• Clearpool Execution Services LLC to pay $300k fine ($105k to NYSE Arca), for violating Rule 203(b) Reg SHO, 17 CFR 242.203 doing short sales without borrowing securities.
• Also without having reasonable belief that could borrow needed securities for delivery.

Acceptance and Consent

• Without admit or deny consented that violated Reg. SHO by potentially "naked" short selling starting in April 2015 through May 2017 incorrectly believing it was acceptable.
• Other violations of rules for short sales for own account violated rule for whole period.