SIMPLEX TRADING, LLC

Q3 2017 13F Holdings Report, Stock Holdings

Signature - Title
Erik Swanson - Chief Executive Officer
Location
Chicago
Holdings as of
30 Sep 2017
Value $
$2,443,531,046
Num holdings
5,711
Filing time
25 Oct 2017, 12:45:32 UTC
Form type
13F-HR
Description
All US holdings of this investor are reported in this report. Top holdings included AMZN, GOOG, NVDA, AAPL, and MU.
Previous filing
Q2 2017 - 12 Jul 2017
Next filing
Q4 2017 - 10 Jan 2018
Options Holdings
Showing stock holdings, see here for options holdings
Sym Weight Trade Impact Company Class Share Change Activity Value Change $ Value $ * Price $ Shares Principal
Filing 2017 Q3 compared to 2017 Q2 by default. Changes are calculated vs the previous SEC filing.
* Reported Price is the price of the security as of the portfolio date. This value is significant in that it is the last known price at which the security was still held.
An asterisk sign (*) next to the price indicates that the price is likely invalid.

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Erik Swanson Chief Executive Officer Chicago, Illinois 25 Oct 2017