Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Amazon
AMZN
|
+$102M |
| 2 |
TSMC
TSM
|
+$27.8M |
| 3 |
JPMorgan Chase
JPM
|
+$22.4M |
| 4 |
Boeing
BA
|
+$19.4M |
| 5 |
ExxonMobil
XOM
|
+$14.7M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
SPDR Gold Trust
GLD
|
+$95.5M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$79.6M |
| 3 |
Tesla
TSLA
|
+$75.3M |
| 4 |
NVIDIA
NVDA
|
+$51.6M |
| 5 |
iShares MSCI EAFE ETF
EFA
|
+$40.5M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.53% |
| 2 | Technology | 0.4% |
| 3 | Healthcare | 0.22% |
| 4 | Financials | 0.21% |
| 5 | Communication Services | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
|
AHRT
2901
PUT
AH Realty Trust
AHRT
$534M
| $538K | ﹤0.01% |
581
+141
| +32% | +$1.39K |
|
2902
PUT
Caleres
CAL
$396M
| $538K | ﹤0.01% |
563
+542
| +2,581% | +$4.36K |
|
2903
Global Payments
GPN
$22.1B
| $538K | ﹤0.01% |
+3,031
| New | +$524K |
|
2904
PUT
Kornit Digital
KRNT
$706M
| $538K | ﹤0.01% |
83
+61
| +277% | +$3.5K |
|
|
AXNX
2905
DELISTED
Axonics, Inc. Common Stock
AXNX
| $538K | ﹤0.01% |
10,559
+6,212
| +143% | +$259K |
|
2906
PUT
BlackLine
BL
$1.69B
| $537K | ﹤0.01% |
60
+24
| +67% | +$2.01K |
|
2907
BorgWarner
BWA
$13.2B
| $537K | ﹤0.01% |
+15,753
| New | +$542K |
|
2908
PUT
New Mountain Finance
NMFC
$646M
| $537K | ﹤0.01% |
562
+475
| +546% | +$4.59K |
|
|
SCHW
2909
Charles Schwab
SCHW
$177B
| $537K | ﹤0.01% |
+14,828
| New | +$516K |
|
|
AGNT
2910
PUT
AGNT Inc
AGNT
$664M
| $536K | ﹤0.01% |
+266
| New | +$4.1K |
|
2911
CALL
Liberty Latin America Class C
LILAK
$1.5B
| $536K | ﹤0.01% |
717
-218
| -23% | -$1.75K |
|
2912
CALL
LPL Financial
LPLA
$26.3B
| $536K | ﹤0.01% |
70
-9
| -11% | -$715 |
|
2913
Natera
NTRA
$37.5B
| $536K | ﹤0.01% |
7,424
+7,398
| +28,454% | +$421K |
|
2914
PUT
QuinStreet
QNST
$870M
| $536K | ﹤0.01% |
339
+327
| +2,725% | +$4.25K |
|
2915
Virgin Galactic
SPCE
$320M
| $536K | ﹤0.01% |
1,395
+842
| +152% | +$320K |
|
2916
CALL
Asbury Automotive
ABG
$4.19B
| $535K | ﹤0.01% |
55
+5
| +10% | +$505 |
|
2917
CALL
Zymeworks
ZYME
$1.68B
| $535K | ﹤0.01% |
115
+82
| +248% | +$2.82K |
|
|
CPE
2918
CALL
DELISTED
Callon Petroleum Company
CPE
| $535K | ﹤0.01% |
1,112
+1,027
| +1,208% | +$9.06K |
|
|
ATH
2919
PUT
DELISTED
Athene Holding Ltd. Class A Common Shares
ATH
| $535K | ﹤0.01% |
157
-447
| -74% | -$15.4K |
|
|
SAFE
2920
Safehold
SAFE
$1.19B
| $534K | ﹤0.01% |
9,292
+7,039
| +312% | +$416K |
|
2921
PUT
Textron
TXT
$16.6B
| $534K | ﹤0.01% |
148
+116
| +363% | +$4.21K |
|
2922
CALL
Celldex Therapeutics
CLDX
$2.77B
| $533K | ﹤0.01% |
360
-51
| -12% | -$597 |
|
|
2923
CALL
New Mountain Finance
NMFC
$646M
| $533K | ﹤0.01% |
558
+336
| +151% | +$3.24K |
|
|
PRSP
2924
DELISTED
Perspecta Inc. Common Stock
PRSP
| $533K | ﹤0.01% |
27,448
+17,694
| +181% | +$373K |
|
2925
Peloton Interactive
PTON
$2.63B
| $532K | ﹤0.01% |
5,366
-161,869
| -97% | -$11.9M |
|
Similar funds
Simplex Trading's Q3 2020 Portfolio in Review
As of Q3 2020, Simplex Trading held 9,056 positions worth $73.5B, up 17% from $62.7B the previous quarter. Its ten largest holdings account for 43% of the portfolio.
Simplex Trading's Q3 2020 filing shows 1,403 new, 3,135 increased, 3,122 reduced and 1,191 closed positions. Its largest new stake was Goldman Sachs: 60,397 shares worth $12.1M. The largest sale was SPDR Gold Trust, an estimated $95.5M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.53% of assets, up from 0.47% a quarter earlier, followed by Technology and Healthcare.
- Simplex Trading's largest Q3 2020 buy was Goldman Sachs: 60,397 shares worth $12.1M.
- Simplex Trading added most to Amazon in Q3 2020, an estimated $102M increase.
- Simplex Trading's biggest Q3 2020 reduction was SPDR Gold Trust, cutting an estimated $95.5M.
- Simplex Trading fully exited iShares MSCI EAFE ETF in Q3 2020, selling an estimated $40.5M.
- Simplex Trading's ten largest holdings make up 43% of its $73.5B portfolio in Q3 2020.
- Simplex Trading opened 1,403 new positions and closed 1,191 in Q3 2020.
- Simplex Trading's portfolio value rose 17% quarter-over-quarter to $73.5B.
Based on Simplex Trading's 13F filing for Q3 2020, filed 14 Oct 2020.