Subject: File No. SR-BOX-2021-06
From: Mark Nelson

June 10, 2021

Im writing in support of a speedy approval of the BSTX rulebook. The proposed BSTX exchange provides signifiant advancements offered by existing exchanges by providing fairer conditions to all market participants by reducing settlement times and providing more transparency.

The t+0 settlement improved market conditions for retail investors reducing risk of failure to deliver on highly shorted stocks like GME, AMC and TSLA. Further it reduces costs (actual and opportunity) cutting out margin lending while waiting for settlement and lost opportunity to reinvest for no margin accounts.

I further expect the reduced costs of operating the exchange to be passed on to prospective companies and issuers creating more opportunities for companies and asset holders to offer securities. This will result in a market boom as all types of new market participants join a public exchange.