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 | |
|---|---|---|---|---|---|---|
6476
PUT
OraSure Technologies
OSUR
$279M
| $49K | ﹤0.01% |
13,100
-14,200
| -52% | -$51.3K |
|
6477
Ring Energy
REI
$315M
| $49K | ﹤0.01% |
21,511
+11,478
| +114% | +$31.3K |
|
6478
CALL
StoneX
SNEX
$9.26B
| $49K | ﹤0.01% |
3,038
| – | – |
|
|
6479
PUT
StoneX
SNEX
$9.26B
| $49K | ﹤0.01% |
3,038
| – | – |
|
6480
CALL
Spire
SR
$4.72B
| $49K | ﹤0.01% |
800
-1,100
| -58% | -$78.6K |
|
6481
CALL
Telesat
TSAT
$567M
| $49K | ﹤0.01% |
6,300
+4,500
| +250% | +$49.7K |
|
6482
CALL
United States Antimony
UAMY
$751M
| $49K | ﹤0.01% |
135,700
+10,900
| +9% | +$4.75K |
|
6483
Wheels Up
UP
$208M
| $49K | ﹤0.01% |
213
+146
| +218% | +$58.5K |
|
6484
CALL
Worthington Enterprises
WOR
$2.75B
| $49K | ﹤0.01% |
2,109
-1,459
| -41% | -$44.6K |
|
|
CCV
6485
PUT
DELISTED
Churchill Capital Corp V
CCV
| $49K | ﹤0.01% |
5,000
-8,600
| -63% | -$84.9K |
|
|
QUOT
6486
CALL
DELISTED
Quotient Technology Inc
QUOT
| $49K | ﹤0.01% |
21,400
-3,000
| -12% | -$7.36K |
|
|
SEV
6487
DELISTED
Sono Group N.V. Common Shares
SEV
| $49K | ﹤0.01% |
19,639
+6,083
| +45% | +$18.1K |
|
|
VISL
6488
DELISTED
Vislink Technologies, Inc. Common Stock
VISL
| $49K | ﹤0.01% |
5,799
| – | – |
|
|
GRN
6489
PUT
DELISTED
iPath Global Carbon ETN
GRN
| $49K | ﹤0.01% |
2,000
+1,900
| +1,900% | +$46.5K |
|
6490
PUT
Arvinas
ARVN
$518M
| $48K | ﹤0.01% |
1,100
| – | – |
|
6491
PUT
Axalta
AXTA
$7.66B
| $48K | ﹤0.01% |
2,300
-6,200
| -73% | -$152K |
|
|
BCIM
6492
CALL
DELISTED
abrdn Bloomberg Industrial Metals Strategy K-1 Free ETF
BCIM
| $48K | ﹤0.01% |
1,700
-2,700
| -61% | -$61.1K |
|
6493
CALL
Crown Holdings
CCK
$12.8B
| $48K | ﹤0.01% |
600
-1,200
| -67% | -$112K |
|
6494
CALL
Dyne Therapeutics
DYN
$4.7B
| $48K | ﹤0.01% |
3,800
+3,600
| +1,800% | +$41.3K |
|
|
FINV
6495
FinVolution Group
FINV
$1.15B
| $48K | ﹤0.01% |
+11,322
| New | +$51.3K |
|
6496
CALL
Finance of America Companies
FOA
$203M
| $48K | ﹤0.01% |
3,250
+700
| +27% | +$11.1K |
|
|
FPI
6497
PUT
Farmland Partners
FPI
$408M
| $48K | ﹤0.01% |
3,800
-18,300
| -83% | -$261K |
|
6498
IAMGOLD
IAG
$8.2B
| $48K | ﹤0.01% |
45,476
-4,169
| -8% | -$5.56K |
|
6499
PUT
Liberty Energy
LBRT
$3.05B
| $48K | ﹤0.01% |
3,800
-172,800
| -98% | -$2.33M |
|
6500
CALL
LGI Homes
LGIH
$1.27B
| $48K | ﹤0.01% |
600
| – | – |
|
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.