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 | |
|---|---|---|---|---|---|---|
876
CALL
Southern Company
SO
$110B
| $8.43M | 0.01% |
123,900
-129,200
| -51% | -$9.79M |
|
877
Teva Pharmaceuticals
TEVA
$35.9B
| $8.42M | 0.01% |
1,043,332
-362,225
| -26% | -$3.2M |
|
878
PUT
Enbridge
ENB
$124B
| $8.39M | 0.01% |
226,200
+137,800
| +156% | +$5.81M |
|
879
CALL
D.R. Horton
DHI
$41.2B
| $8.38M | 0.01% |
124,500
-119,200
| -49% | -$8.77M |
|
880
CALL
Public Storage
PSA
$60.2B
| $8.37M | 0.01% |
28,600
+7,000
| +32% | +$2.28M |
|
881
CALL
Colgate-Palmolive
CL
$72.6B
| $8.37M | 0.01% |
119,200
-132,200
| -53% | -$10.4M |
|
882
PUT
Peloton Interactive
PTON
$2.63B
| $8.34M | 0.01% |
1,203,700
+434,200
| +56% | +$4.41M |
|
883
CALL
Stellantis
STLA
$16.5B
| $8.33M | 0.01% |
703,600
+271,500
| +63% | +$3.65M |
|
884
PUT
Edwards Lifesciences
EW
$47.6B
| $8.33M | 0.01% |
100,800
+71,800
| +248% | +$6.91M |
|
885
CALL
Molson Coors Class B
TAP
$7.68B
| $8.3M | 0.01% |
173,000
+24,400
| +16% | +$1.32M |
|
|
FTCH
886
CALL
DELISTED
Farfetch Limited Class A Ordinary Shares
FTCH
| $8.3M | 0.01% |
1,114,100
+505,600
| +83% | +$4.49M |
|
887
PUT
Avis
CAR
$5.63B
| $8.27M | 0.01% |
55,700
-4,200
| -7% | -$690K |
|
888
CALL
Aflac
AFL
$63.9B
| $8.27M | 0.01% |
147,100
-57,400
| -28% | -$3.38M |
|
889
CALL
Invesco DB Commodity Index Tracking Fund
DBC
$1.73B
| $8.25M | 0.01% |
345,200
-55,800
| -14% | -$1.42M |
|
|
FSR
890
PUT
DELISTED
Fisker Inc.
FSR
| $8.25M | 0.01% |
1,092,300
+317,400
| +41% | +$2.86M |
|
891
CALL
Yum! Brands
YUM
$41B
| $8.24M | 0.01% |
77,500
+59,000
| +319% | +$6.85M |
|
892
CALL
BCE
BCE
$19.9B
| $8.24M | 0.01% |
196,400
+29,900
| +18% | +$1.45M |
|
893
CALL
American Electric Power
AEP
$73.7B
| $8.23M | 0.01% |
95,200
-34,400
| -27% | -$3.4M |
|
894
PUT
Xcel Energy
XEL
$51B
| $8.22M | 0.01% |
128,400
+9,300
| +8% | +$677K |
|
895
PUT
TransDigm Group
TDG
$69.2B
| $8.19M | 0.01% |
15,600
+4,200
| +37% | +$2.51M |
|
896
PUT
Bio-Rad Laboratories Class A
BIO
$8.42B
| $8.18M | 0.01% |
19,600
+100
| +0.5% | +$49.9K |
|
897
CALL
Boston Properties
BXP
$11B
| $8.16M | 0.01% |
108,900
+13,600
| +14% | +$1.16M |
|
898
CALL
Ryder
R
$10.4B
| $8.13M | 0.01% |
107,700
+104,000
| +2,811% | +$7.91M |
|
899
CALL
Steel Dynamics
STLD
$35.6B
| $8.12M | 0.01% |
114,500
+59,000
| +106% | +$4.47M |
|
|
900
PUT
American Electric Power
AEP
$73.7B
| $8.1M | 0.01% |
93,700
-52,900
| -36% | -$5.23M |
|
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.