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 | |
|---|---|---|---|---|---|---|
|
CMBT
1301
PUT
CMB.TECH NV
CMBT
$4.54B
| $2.66M | ﹤0.01% |
3,017
+414
| +16% | +$3.86K |
|
|
QIWI
1302
PUT
DELISTED
QIWI PLC
QIWI
| $2.66M | ﹤0.01% |
1,536
+1,279
| +498% | +$23.1K |
|
|
FRC
1303
PUT
DELISTED
First Republic Bank
FRC
| $2.66M | ﹤0.01% |
244
+37
| +18% | +$4.11K |
|
1304
PUT
Wolfspeed
WOLF
$1.23B
| $2.66M | ﹤0.01% |
417
+203
| +95% | +$13.1K |
|
1305
Wayfair
W
$11.2B
| $2.64M | ﹤0.01% |
9,078
+8,828
| +3,531% | +$2.42M |
|
1306
CALL
PagerDuty
PD
$694M
| $2.64M | ﹤0.01% |
974
+76
| +8% | +$2.14K |
|
1307
CALL
Chemours
CC
$2.6B
| $2.63M | ﹤0.01% |
1,260
-638
| -34% | -$12.3K |
|
1308
PUT
Yum China
YUMC
$14.8B
| $2.63M | ﹤0.01% |
496
+316
| +176% | +$16.7K |
|
1309
Planet Fitness
PLNT
$4.27B
| $2.61M | ﹤0.01% |
+42,422
| New | +$2.44M |
|
1310
PUT
Incyte
INCY
$23.6B
| $2.61M | ﹤0.01% |
291
-235
| -45% | -$22.7K |
|
1311
PUT
Sibanye-Stillwater
SBSW
$5.99B
| $2.61M | ﹤0.01% |
2,344
+871
| +59% | +$9.93K |
|
1312
PUT
Alcon
ALC
$33.2B
| $2.61M | ﹤0.01% |
458
-760
| -62% | -$44.7K |
|
1313
PUT
Jack Henry & Associates
JKHY
$10.6B
| $2.6M | ﹤0.01% |
160
+129
| +416% | +$22.4K |
|
1314
CALL
NiSource
NI
$22.3B
| $2.6M | ﹤0.01% |
1,182
+957
| +425% | +$22.2K |
|
1315
CALL
Energy Transfer Partners
ET
$70.3B
| $2.6M | ﹤0.01% |
4,792
-3,619
| -43% | -$23K |
|
1316
PUT
Globus Medical
GMED
$10.4B
| $2.59M | ﹤0.01% |
524
+267
| +104% | +$13.8K |
|
1317
PUT
ABM Industries
ABM
$2.79B
| $2.59M | ﹤0.01% |
707
+682
| +2,728% | +$25K |
|
|
ABMD
1318
DELISTED
Abiomed Inc
ABMD
| $2.59M | ﹤0.01% |
9,354
+2,242
| +32% | +$646K |
|
|
SKX
1319
CALL
DELISTED
Skechers
SKX
| $2.59M | ﹤0.01% |
857
-442
| -34% | -$13.2K |
|
1320
CALL
Gartner
IT
$9.29B
| $2.59M | ﹤0.01% |
207
+154
| +291% | +$19.6K |
|
1321
PUT
Oneok
OKE
$59B
| $2.58M | ﹤0.01% |
995
-14
| -1% | -$390 |
|
1322
Lyft
LYFT
$5.52B
| $2.58M | ﹤0.01% |
93,712
-24,540
| -21% | -$730K |
|
1323
Regeneron Pharmaceuticals
REGN
$69.8B
| $2.58M | ﹤0.01% |
4,609
-1,701
| -27% | -$1.03M |
|
|
SIVB
1324
PUT
DELISTED
SVB Financial Group
SIVB
| $2.57M | ﹤0.01% |
107
-13
| -11% | -$3.06K |
|
1325
PUT
AMC Global Media
AMCX
$441M
| $2.57M | ﹤0.01% |
1,041
+709
| +214% | +$17K |
|
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.