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
|
+$170M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$71.3M |
| 3 |
AT&T
T
|
+$44.2M |
| 4 |
Meta Platforms (Facebook)
META
|
+$37.1M |
| 5 |
iShares MSCI Emerging Markets ETF
EEM
|
+$34.4M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Microsoft
MSFT
|
+$94.3M |
| 2 |
JPMorgan Chase
JPM
|
+$68.2M |
| 3 |
Citigroup
C
|
+$62.8M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$50.9M |
| 5 |
SPDR Gold Trust
GLD
|
+$46.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Consumer Discretionary | 0.38% |
| 2 | Technology | 0.35% |
| 3 | Communication Services | 0.24% |
| 4 | Healthcare | 0.2% |
| 5 | Consumer Staples | 0.13% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1776
PUT
Cracker Barrel
CBRL
$1.2B
| $2.25M | ﹤0.01% |
23,800
-23,900
| -50% | -$2.49M |
|
1777
CALL
NCR Voyix
VYX
$1.06B
| $2.25M | ﹤0.01% |
156,480
-765,448
| -83% | -$10.2M |
|
1778
PUT
First Majestic Silver
AG
$8.05B
| $2.24M | ﹤0.01% |
268,300
-30,300
| -10% | -$265K |
|
1779
PUT
Dave & Buster's
PLAY
$343M
| $2.23M | ﹤0.01% |
63,000
-65,600
| -51% | -$2.37M |
|
1780
CALL
Invesco Agriculture Commodity Strategy No K-1 ETF
PDBA
$313M
| $2.22M | ﹤0.01% |
150,200
-700
| -0.5% | -$20.5K |
|
1781
PUT
VeriSign
VRSN
$25.3B
| $2.22M | ﹤0.01% |
10,800
+10,300
| +2,060% | +$1.97M |
|
1782
CALL
Western Midstream Partners
WES
$19.6B
| $2.22M | ﹤0.01% |
82,600
-74,600
| -47% | -$2.01M |
|
1783
PUT
Textron
TXT
$16.6B
| $2.22M | ﹤0.01% |
31,300
+30,500
| +3,813% | +$2.07M |
|
1784
Tapestry
TPR
$28.8B
| $2.21M | ﹤0.01% |
58,149
+18,196
| +46% | +$623K |
|
1785
PUT
Labcorp
LH
$24.3B
| $2.21M | ﹤0.01% |
10,942
+1,863
| +21% | +$364K |
|
1786
PUT
Under Armour Class C
UA
$2.92B
| $2.2M | ﹤0.01% |
224,100
+81,300
| +57% | +$618K |
|
1787
CALL
Perion Network
PERI
$367M
| $2.2M | ﹤0.01% |
87,000
+31,700
| +57% | +$772K |
|
|
BERY
1788
DELISTED
Berry Global Group, Inc.
BERY
| $2.2M | ﹤0.01% |
39,656
-30,983
| -44% | -$1.52M |
|
1789
PUT
Madison Square Garden
MSGS
$9.54B
| $2.2M | ﹤0.01% |
12,000
+10,000
| +500% | +$1.57M |
|
|
WWE
1790
PUT
DELISTED
World Wrestling Entertainment
WWE
| $2.2M | ﹤0.01% |
32,100
+30,100
| +1,505% | +$2.27M |
|
1791
CALL
BlackBerry
BB
$5.01B
| $2.19M | ﹤0.01% |
672,700
-131,500
| -16% | -$584K |
|
1792
PUT
Jack in the Box
JACK
$278M
| $2.19M | ﹤0.01% |
32,100
-2,100
| -6% | -$161K |
|
1793
CALL
Guidewire Software
GWRE
$11.5B
| $2.19M | ﹤0.01% |
35,000
+4,000
| +13% | +$237K |
|
1794
CALL
Tanger
SKT
$4.82B
| $2.19M | ﹤0.01% |
121,900
-1,900
| -2% | -$34.1K |
|
1795
CALL
FMC
FMC
$1.42B
| $2.18M | ﹤0.01% |
17,500
-17,500
| -50% | -$2.15M |
|
1796
PUT
TC Energy
TRP
$73.5B
| $2.18M | ﹤0.01% |
54,800
+50,300
| +1,118% | +$2.18M |
|
1797
CALL
Kanzhun
BZ
$6.89B
| $2.18M | ﹤0.01% |
107,200
+102,000
| +1,962% | +$1.67M |
|
1798
CALL
Cooper Companies
COO
$13.7B
| $2.18M | ﹤0.01% |
+26,400
| New | +$1.95M |
|
1799
Hilton Worldwide
HLT
$74B
| $2.18M | ﹤0.01% |
+17,257
| New | +$2.27M |
|
1800
PUT
Murphy Oil
MUR
$5.58B
| $2.18M | ﹤0.01% |
50,700
+31,200
| +160% | +$1.41M |
|
Similar funds
Simplex Trading's Q4 2022 Portfolio in Review
As of Q4 2022, Simplex Trading held 11,206 positions worth $91.9B, up 3.9% from $88.5B the previous quarter. Its ten largest holdings account for 34% of the portfolio.
Simplex Trading's Q4 2022 filing shows 1,219 new, 3,365 increased, 4,370 reduced and 1,942 closed positions. Its largest new stake was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M. The largest sale was Microsoft, an estimated $94.3M.
By sector, the portfolio is most concentrated in Consumer Discretionary at 0.38% of assets, up from 0.3% a quarter earlier, followed by Technology and Communication Services.
- Simplex Trading's largest Q4 2022 buy was iShares MSCI Emerging Markets ETF: 932,756 shares worth $35.4M.
- Simplex Trading added most to Amazon in Q4 2022, an estimated $170M increase.
- Simplex Trading's biggest Q4 2022 reduction was Microsoft, cutting an estimated $94.3M.
- Simplex Trading fully exited JPMorgan Chase in Q4 2022, selling an estimated $68.2M.
- Simplex Trading's ten largest holdings make up 34% of its $91.9B portfolio in Q4 2022.
- Simplex Trading opened 1,219 new positions and closed 1,942 in Q4 2022.
- Simplex Trading's portfolio value rose 3.9% quarter-over-quarter to $91.9B.
Based on Simplex Trading's 13F filing for Q4 2022, filed 2 Feb 2023.