Period
Q4 2017
Calendar quarter covered by the filing.
SIMPLEX TRADING, LLC portfolio
Q4 2017 · Holdings as of · Filed · $1,429,877,000 reported in Form 13F
What changed in Q4 2017?
Comparable share positions since Q3 2017.
- New
- 821
- Increased
- 514
- Reduced
- 482
- Exited
- 652
1 position with incomplete comparison or price data excluded.
Largest disclosed changes
-
-73,913 shares
-$86,438,431 estimated
Weight -2.14 percentage points
-
-303,016 shares
-$58,632,727 estimated
Weight -3.11 percentage points
-
-47,374 shares
-$49,571,306 estimated
Weight -2.41 percentage points
-
-288,294 shares
-$48,786,443 estimated
Weight -2.51 percentage points
-
-93,850 shares
-$32,373,578 estimated
Weight -1.5 percentage points
Estimates use share changes and filing prices. They are not trade proceeds. Options and principal positions are excluded.
Compare with Q3 2017Holdings
| Sym | Weight | Trade Impact | Company | Class | Share Change | Activity | Value change | SEC-reported value | SEC-reported price | Shares | Principal |
|---|
Filing details and SEC source
- Portfolio date
- 31 Dec 2017
- Reported 13F value
- $1,429,877,000
- Reported 13F holdings
- 1,844
- Largest 13F holdings
-
AMZN MU CELG GOOGL GOOG BA BIDU C PCLN AGN EEM TWX
+8 more
DE NVDA AAPL JD AABA AVGO BRKB IBM - What this filing covers
-
13F holdings
1,844Parsed equity rows, excluding option-only view rows.
Reported value
$1,429,877,000SEC Form 13F market value, not total AUM.
Accepted by SEC
10 Jan 2018EDGAR acceptance date.
How to read this filing
- Start with the largest positions and changes, then open issuer-level rows for CUSIP-specific history.
- Form 13F market value excludes cash and many non-13F assets, so it should not be treated as total assets under management.
- SEC classifies this as a holdings report: this manager reports its visible U.S.-listed equity holdings in this filing.
- Manager signature
- Erik Swanson - Chief Executive Officer
- Manager location
- Chicago, IL
- Accepted by SEC
- 10 Jan 2018, 16:50:49 UTC
- SEC form
- 13F-HR
- Prior SEC filing
- Q3 2017 - 25 Oct 2017
- Next SEC filing
- Q1 2018 - 26 Apr 2018
- Source filing
- View source filing
- Options holdings
- Showing equity holdings. Open options holdings.
13F snapshot
Latest parsed holdings, value, and filing-period context.
1 signal
Manager
Names, identifiers, and filing context for this profile.
2 identity fields
Source evidence
Original filing metadata and source links for verification.
5 source fields
Related views
1 detail
This view compares filing 2017 Q4 with 2017 Q3. Changes are calculated against the previous SEC filing.
SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held.
* marks a reported price that did not pass the local price check.
* marks a reported price that did not pass the local price check.
Person Signing this Report on Behalf of Reporting Manager:
| Name | Title | City, State | Date |
|---|---|---|---|
| Erik Swanson | Chief Executive Officer | Chicago, Illinois | 10 Jan 2018 |