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 |
Microsoft
MSFT
|
+$114M |
| 2 |
NVIDIA
NVDA
|
+$85.9M |
| 3 |
Citigroup
C
|
+$61.5M |
| 4 |
Berkshire Hathaway Class B
BRK.B
|
+$45.5M |
| 5 |
Pfizer
PFE
|
+$41.6M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$467M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$71.2M |
| 3 |
Meta Platforms (Facebook)
META
|
+$47.6M |
| 4 |
Intel
INTC
|
+$41.9M |
| 5 |
TSMC
TSM
|
+$35.9M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.51% |
| 2 | Financials | 0.35% |
| 3 | Consumer Discretionary | 0.3% |
| 4 | Healthcare | 0.25% |
| 5 | Industrials | 0.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2601
American Water Works
AWK
$26.3B
| $1.03M | ﹤0.01% |
7,933
-872
| -10% | -$131K |
|
|
CANO
2602
DELISTED
Cano Health, Inc.
CANO
| $1.03M | ﹤0.01% |
1,191
+1,145
| +2,489% | +$718K |
|
2603
State Street
STT
$50.7B
| $1.03M | ﹤0.01% |
16,958
+7,386
| +77% | +$505K |
|
|
HIBB
2604
PUT
DELISTED
Hibbett, Inc. Common Stock
HIBB
| $1.03M | ﹤0.01% |
20,700
+3,800
| +22% | +$200K |
|
|
CMA
2605
CALL
DELISTED
Comerica
CMA
| $1.03M | ﹤0.01% |
14,500
-20,300
| -58% | -$1.6M |
|
2606
PUT
Companhia Siderúrgica Nacional
SID
$1.49B
| $1.03M | ﹤0.01% |
433,100
+172,200
| +66% | +$475K |
|
2607
CALL
Vipshop
VIPS
$7.08B
| $1.03M | ﹤0.01% |
122,500
-14,400
| -11% | -$143K |
|
2608
Rio Tinto
RIO
$150B
| $1.03M | ﹤0.01% |
18,703
-42,432
| -69% | -$2.44M |
|
|
BRT
2609
CALL
BRT Apartments
BRT
$283M
| $1.03M | ﹤0.01% |
50,600
+16,400
| +48% | +$374K |
|
2610
CALL
CleanSpark
CLSK
$3.6B
| $1.03M | ﹤0.01% |
323,100
+23,300
| +8% | +$101K |
|
2611
Banco Bradesco
BBD
$38.5B
| $1.02M | ﹤0.01% |
+277,770
| New | +$979K |
|
2612
Everest Group
EG
$15.4B
| $1.02M | ﹤0.01% |
3,882
+2,767
| +248% | +$749K |
|
2613
Melco Resorts & Entertainment
MLCO
$2.18B
| $1.02M | ﹤0.01% |
153,647
+75,115
| +96% | +$414K |
|
|
STR
2614
CALL
DELISTED
Sitio Royalties
STR
| $1.02M | ﹤0.01% |
46,000
-41,400
| -47% | -$1.07M |
|
|
WEBR
2615
CALL
DELISTED
Weber Inc.
WEBR
| $1.02M | ﹤0.01% |
154,900
+70,800
| +84% | +$517K |
|
2616
CALL
Chefs' Warehouse
CHEF
$3.9B
| $1.02M | ﹤0.01% |
35,100
-3,400
| -9% | -$119K |
|
2617
CALL
Vroom Inc
VRM
$37.5M
| $1.02M | ﹤0.01% |
10,956
+3,813
| +53% | +$509K |
|
|
BLUE
2618
DELISTED
bluebird bio
BLUE
| $1.01M | ﹤0.01% |
8,022
+697
| +10% | +$78.9K |
|
2619
Invesco
IVZ
$13.3B
| $1.01M | ﹤0.01% |
74,105
+52,188
| +238% | +$880K |
|
2620
Appian
APPN
$1.88B
| $1.01M | ﹤0.01% |
24,831
+2,146
| +9% | +$104K |
|
2621
CALL
FirstEnergy
FE
$28.5B
| $1.01M | ﹤0.01% |
27,400
-24,500
| -47% | -$968K |
|
2622
Pinduoduo
PDD
$121B
| $1.01M | ﹤0.01% |
16,189
+15,989
| +7,995% | +$930K |
|
|
ABMD
2623
CALL
DELISTED
Abiomed Inc
ABMD
| $1.01M | ﹤0.01% |
4,100
+1,000
| +32% | +$270K |
|
2624
PUT
AMN Healthcare
AMN
$1.3B
| $1.01M | ﹤0.01% |
9,500
-8,100
| -46% | -$888K |
|
2625
Masco
MAS
$16.4B
| $1.01M | ﹤0.01% |
+21,548
| New | +$1.12M |
|
Similar funds
Simplex Trading's Q3 2022 Portfolio in Review
As of Q3 2022, Simplex Trading held 11,570 positions worth $88.5B, down 6% from $94.1B the previous quarter. Its ten largest holdings account for 38% of the portfolio.
Simplex Trading's Q3 2022 filing shows 1,564 new, 4,281 increased, 3,851 reduced and 1,575 closed positions. Its largest new stake was Microsoft: 432,062 shares worth $101M. The largest sale was Apple, an estimated $467M.
By sector, the portfolio is most concentrated in Technology at 0.51% of assets, down from 0.84% a quarter earlier, followed by Financials and Consumer Discretionary.
- Simplex Trading's largest Q3 2022 buy was Microsoft: 432,062 shares worth $101M.
- Simplex Trading added most to NVIDIA in Q3 2022, an estimated $85.9M increase.
- Simplex Trading's biggest Q3 2022 reduction was Apple, cutting an estimated $467M.
- Simplex Trading fully exited iShares Core S&P 500 ETF in Q3 2022, selling an estimated $34.3M.
- Simplex Trading's ten largest holdings make up 38% of its $88.5B portfolio in Q3 2022.
- Simplex Trading opened 1,564 new positions and closed 1,575 in Q3 2022.
- Simplex Trading's portfolio value fell 6% quarter-over-quarter to $88.5B.
Based on Simplex Trading's 13F filing for Q3 2022, filed 4 Nov 2022.