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 | |
|---|---|---|---|---|---|---|
3801
PUT
Funko
FNKO
$326M
| $376K | ﹤0.01% |
18,600
-12,300
| -40% | -$282K |
|
|
GDEN
3802
CALL
DELISTED
Golden Entertainment
GDEN
| $376K | ﹤0.01% |
10,800
+6,300
| +140% | +$252K |
|
3803
CALL
iShares S&P GSCI Commodity-Indexed Trust
GSG
$998M
| $376K | ﹤0.01% |
18,300
-141,000
| -89% | -$3.1M |
|
3804
PUT
1-800-Flowers.com
FLWS
$250M
| $375K | ﹤0.01% |
57,900
+47,600
| +462% | +$421K |
|
3805
Globus Medical
GMED
$10.7B
| $375K | ﹤0.01% |
+6,308
| New | +$380K |
|
3806
PUT
Hilltop Holdings
HTH
$2.26B
| $375K | ﹤0.01% |
15,100
+2,700
| +22% | +$73.5K |
|
|
FPAC
3807
CALL
DELISTED
Far Peak Acquisition Corporation
FPAC
| $375K | ﹤0.01% |
38,000
-22,900
| -38% | -$226K |
|
|
ARI
3808
CALL
Apollo Commercial Real Estate
ARI
$867M
| $374K | ﹤0.01% |
45,100
+900
| +2% | +$10.3K |
|
3809
Direxion Daily S&P Oil & Gas Exp. & Prod. Bear 2X ETF
DRIP
$98.4M
| $374K | ﹤0.01% |
1,967
-6,539
| -77% | -$1.25M |
|
3810
Dorian LPG
LPG
$2.03B
| $374K | ﹤0.01% |
27,634
+14,132
| +105% | +$213K |
|
3811
PUT
RBC Bearings
RBC
$17.4B
| $374K | ﹤0.01% |
1,800
+700
| +64% | +$161K |
|
3812
Schwab US Broad Market ETF
SCHB
$43.2B
| $374K | ﹤0.01% |
+26,763
| New | +$416K |
|
3813
CALL
SkyWater Technology
SKYT
$1.6B
| $374K | ﹤0.01% |
49,000
+43,800
| +842% | +$516K |
|
3814
CALL
Sonoco
SON
$5.57B
| $374K | ﹤0.01% |
6,600
+6,500
| +6,500% | +$400K |
|
3815
CALL
Vanguard FTSE Developed Markets ETF
VEA
$229B
| $374K | ﹤0.01% |
10,300
-1,200
| -10% | -$48.9K |
|
3816
CALL
HUB Group
HUBG
$2.85B
| $372K | ﹤0.01% |
10,800
+1,400
| +15% | +$53.5K |
|
3817
CALL
Textron
TXT
$14.7B
| $372K | ﹤0.01% |
6,400
-7,100
| -53% | -$450K |
|
|
NXDR
3818
PUT
Nextdoor Holdings
NXDR
$847M
| $371K | ﹤0.01% |
133,100
-143,100
| -52% | -$471K |
|
|
WBX
3819
CALL
Wallbox
WBX
$77.9M
| $371K | ﹤0.01% |
2,355
-1,055
| -31% | -$188K |
|
|
FAZE
3820
PUT
DELISTED
FaZe Holdings Inc. Common Stock
FAZE
| $371K | ﹤0.01% |
+38,400
| New | +$510K |
|
|
DOC
3821
PUT
DELISTED
PHYSICIANS REALTY TRUST
DOC
| $371K | ﹤0.01% |
24,700
-9,200
| -27% | -$155K |
|
3822
PUT
Cabot Corp
CBT
$4.54B
| $370K | ﹤0.01% |
5,800
+500
| +9% | +$35.2K |
|
3823
Clene
CLNN
$64M
| $370K | ﹤0.01% |
6,621
+6,543
| +8,388% | +$433K |
|
3824
PUT
Packaging Corp of America
PKG
$21.9B
| $370K | ﹤0.01% |
3,300
+2,300
| +230% | +$311K |
|
3825
Zoetis
ZTS
$32.4B
| $370K | ﹤0.01% |
2,497
-1,520
| -38% | -$254K |
|
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.