Period
Q4 2019
Calendar quarter covered by the filing.
SIMPLEX TRADING, LLC portfolio
Q4 2019 · Holdings as of · Filed · reported in Form 13F
$1.5B
Full value: $1,504,163,000 · USD · 31 Dec 2019What changed in Q4 2019?
Comparable share positions since Q3 2019.
- New
- 734
- Increased
- 577
- Reduced
- 466
- Exited
- 668
50 positions with incomplete comparison or price data excluded.
Largest disclosed changes
-
shares
+272.58K
Full value: +272,579 · shares · 31 Dec 2019estimated+$80.04M
Full value: +$80,042,000 · USD · 31 Dec 2019 · Estimated from share changes and filing pricesWeight +5.32 percentage points
-
shares
-218.63K
Full value: -218,634 · shares · 31 Dec 2019estimated-$46.37M
Full value: -$46,371,949 · USD · 31 Dec 2019 · Estimated from share changes and filing pricesWeight -3.78 percentage points
-
shares
+334.55K
Full value: +334,545 · shares · 31 Dec 2019estimated+$45.32M
Full value: +$45,323,471 · USD · 31 Dec 2019 · Estimated from share changes and filing pricesWeight +3 percentage points
-
shares
+29K
Full value: +28,998 · shares · 31 Dec 2019estimated+$38.77M
Full value: +$38,770,470 · USD · 31 Dec 2019 · Estimated from share changes and filing pricesWeight +2.29 percentage points
-
shares
+20.91K
Full value: +20,910 · shares · 31 Dec 2019estimated+$38.64M
Full value: +$38,637,806 · USD · 31 Dec 2019 · Estimated from share changes and filing pricesWeight +2.38 percentage points
Estimates use share changes and filing prices. They are not trade proceeds. Options and principal positions are excluded.
Compare with Q3 2019Holdings
| 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 2019
- Reported 13F value
- $1,504,163,000
- Reported 13F holdings
- 1,838
- Largest 13F holdings
-
AAPL GOOG AMZN TLT TSLA NFLX QQQ NVDA ABBV BABA BYND EFA
+8 more
CMG AVGO AMD QCOM UNP HD SMH SPY - What this filing covers
-
13F holdings
1,838Parsed equity rows, excluding option-only view rows.
Reported value
$1,504,163,000SEC Form 13F market value, not total AUM.
Accepted by SEC
05 Feb 2020EDGAR 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
- 05 Feb 2020, 10:34:44 UTC
- SEC form
- 13F-HR
- Prior SEC filing
- Q3 2019 - 15 Oct 2019
- Next SEC filing
- Q1 2020 - 29 Apr 2020
- 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 2019 Q4 with 2019 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 | 05 Feb 2020 |