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 | |
|---|---|---|---|---|---|---|
1526
CALL
Trupanion
TRUP
$1.05B
| $2M | ﹤0.01% |
254
+181
| +248% | +$10.9K |
|
1527
Dave & Buster's
PLAY
$343M
| $2M | ﹤0.01% |
+132,161
| New | +$1.95M |
|
1528
CALL
Purple Innovation
PRPL
$33.2M
| $2M | ﹤0.01% |
32
+25
| +357% | +$13.3K |
|
1529
PUT
Arrowhead Research
ARWR
$12.1B
| $1.99M | ﹤0.01% |
463
-129
| -22% | -$5.57K |
|
1530
PUT
BorgWarner
BWA
$13.2B
| $1.99M | ﹤0.01% |
584
-137
| -19% | -$4.71K |
|
1531
CALL
Ionis Pharmaceuticals
IONS
$9.35B
| $1.99M | ﹤0.01% |
419
+159
| +61% | +$8.83K |
|
1532
CALL
Ingersoll Rand
IR
$33B
| $1.99M | ﹤0.01% |
558
+153
| +38% | +$5.12K |
|
1533
Sabre
SABR
$656M
| $1.99M | ﹤0.01% |
305,155
+205,746
| +207% | +$1.52M |
|
|
CCXI
1534
PUT
DELISTED
ChemoCentryx, Inc.
CCXI
| $1.98M | ﹤0.01% |
362
-85
| -19% | -$4.58K |
|
1535
CALL
Carrier Global
CARR
$57.2B
| $1.98M | ﹤0.01% |
649
+490
| +308% | +$13.9K |
|
1536
WisdomTree Japan Hedged Equity Fund
DXJ
$7.23B
| $1.98M | ﹤0.01% |
40,460
+30,731
| +316% | +$1.47M |
|
|
GRUB
1537
CALL
DELISTED
Just Eat Takeaway.com N.V. American Depositary Shares
GRUB
| $1.98M | ﹤0.01% |
137
-452
| -77% | -$65.2K |
|
|
REGI
1538
PUT
DELISTED
Renewable Energy Group, Inc.
REGI
| $1.98M | ﹤0.01% |
371
-581
| -61% | -$20.4K |
|
1539
CALL
FMC
FMC
$1.42B
| $1.98M | ﹤0.01% |
187
-6
| -3% | -$642 |
|
1540
PUT
Voya Financial
VOYA
$8.94B
| $1.98M | ﹤0.01% |
413
+339
| +458% | +$16.7K |
|
|
SDC
1541
CALL
DELISTED
SmileDirectClub, Inc. Class A Common Stock
SDC
| $1.98M | ﹤0.01% |
1,694
-737
| -30% | -$6.77K |
|
1542
CALL
Entegris
ENTG
$19.7B
| $1.98M | ﹤0.01% |
266
-353
| -57% | -$23.7K |
|
1543
United Parks & Resorts
PRKS
$2.11B
| $1.98M | ﹤0.01% |
100,284
+75,069
| +298% | +$1.37M |
|
1544
CALL
Nasdaq
NDAQ
$52.1B
| $1.98M | ﹤0.01% |
483
-591
| -55% | -$25.2K |
|
1545
CALL
PTC Therapeutics
PTCT
$6.37B
| $1.97M | ﹤0.01% |
422
+100
| +31% | +$4.92K |
|
1546
Invesco CurrencyShares British Pound Sterling Trust
FXB
$76.9M
| $1.97M | ﹤0.01% |
+15,785
| New | +$1.97M |
|
1547
Aecom
ACM
$9.07B
| $1.97M | ﹤0.01% |
46,992
+31,850
| +210% | +$1.21M |
|
|
PFPT
1548
PUT
DELISTED
Proofpoint, Inc.
PFPT
| $1.96M | ﹤0.01% |
186
-21
| -10% | -$2.34K |
|
1549
PUT
UBS Group
UBS
$170B
| $1.96M | ﹤0.01% |
1,759
-1,076
| -38% | -$12.9K |
|
1550
Ventas
VTR
$48.9B
| $1.96M | ﹤0.01% |
46,715
+8,577
| +22% | +$343K |
|
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.