Subject: File No. S7-24-15
From: ROGER VINTON

January 29, 2020

I have invested in ProShares' products successfully for several years and currently satisfy a critical element in my retirement income portfolio. I was extremely disappointed to learn of the SEC's consideration of limiting , or possibly restricting open market availability to investors. In my opinion this would certainly be an unwarranted action on the part of the SEC. I strongly suggest serious deliberation before such unnecessary action is taken. Thank you for your consideration.