SIMPLEX TRADING, LLC

Q1 2017 13F Holdings Report, Stock Holdings

Signature - Title
Erik Swanson - Chief Executive Officer
Location
Chicago
Holdings as of
31 Mar 2017
Value $
$2,306,078,193
Num holdings
5,975
Filing time
21 Apr 2017, 16:30:07 UTC
Form type
13F-HR
Description
All US holdings of this investor are reported in this report. Top holdings included SPY, META, GOOG, GS, and AAPL. Confidential Treatment Requested (one or more holding(s) omitted).
Previous filing
Q4 2016 - 11 Jan 2017
Next filing
Q2 2017 - 12 Jul 2017
SEC
View on sec.gov
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 Q1 compared to 2016 Q4 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.

Confidential Treatment Requested. (The Manager has omitted from this public Form 13F one or more holding(s) for which it is requesting confidential treatment from the U.S. Securities and Exchange Commission pursuant to section 13(f) of the Exchange Act and rule 24b-2 thereunder)

Person Signing this Report on Behalf of Reporting Manager:

Name Title City, State Date
Erik Swanson Chief Executive Officer Chicago, Illinois 21 Apr 2017