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 | |
|---|---|---|---|---|---|---|
776
PUT
Crown Castle
CCI
$33B
| $10.7M | 0.01% |
73,700
-2,600
| -3% | -$445K |
|
777
CALL
Bilibili
BILI
$7.26B
| $10.6M | 0.01% |
693,600
+461,200
| +198% | +$10.5M |
|
778
CALL
AMC Entertainment Holdings
AMC
$2.06B
| $10.6M | 0.01% |
319,740
+9,480
| +3% | +$1.29M |
|
779
PUT
VF Corp
VFC
$6.69B
| $10.6M | 0.01% |
354,200
+292,200
| +471% | +$12.6M |
|
780
PUT
Fortinet
FTNT
$113B
| $10.6M | 0.01% |
215,400
-17,600
| -8% | -$953K |
|
781
CALL
Lumen
LUMN
$6.62B
| $10.6M | 0.01% |
1,453,400
-276,400
| -16% | -$2.81M |
|
782
PUT
Celsius Holdings
CELH
$6.89B
| $10.6M | 0.01% |
349,500
+250,800
| +254% | +$7.86M |
|
783
PUT
BILL Holdings
BILL
$4.33B
| $10.6M | 0.01% |
79,800
-6,400
| -7% | -$920K |
|
784
CALL
Cognizant
CTSH
$21.2B
| $10.5M | 0.01% |
183,100
+102,900
| +128% | +$6.74M |
|
785
PUT
Match Group
MTCH
$8.91B
| $10.5M | 0.01% |
220,200
-11,200
| -5% | -$704K |
|
786
ConocoPhillips
COP
$146B
| $10.5M | 0.01% |
102,559
+17,101
| +20% | +$1.71M |
|
787
PUT
Beyond Meat
BYND
$289M
| $10.5M | 0.01% |
739,500
-288,500
| -28% | -$7.96M |
|
|
P
788
CALL
Everpure Inc
P
$25B
| $10.4M | 0.01% |
380,600
-156,800
| -29% | -$4.43M |
|
789
PUT
Cencora
COR
$59.9B
| $10.4M | 0.01% |
76,900
-5,400
| -7% | -$775K |
|
790
CALL
Blackrock
BLK
$163B
| $10.4M | 0.01% |
18,900
+4,000
| +27% | +$2.62M |
|
791
PUT
TJX Companies
TJX
$171B
| $10.4M | 0.01% |
166,900
-33,100
| -17% | -$2.08M |
|
792
CALL
Canadian Solar
CSIQ
$932M
| $10.3M | 0.01% |
277,700
-57,100
| -17% | -$2.17M |
|
793
PUT
Apollo Global Management
APO
$70B
| $10.3M | 0.01% |
221,000
+38,800
| +21% | +$2.13M |
|
794
CALL
BJs Wholesale Club
BJ
$11.8B
| $10.3M | 0.01% |
141,100
+125,500
| +804% | +$9M |
|
795
PUT
Thor Industries
THO
$3.99B
| $10.2M | 0.01% |
146,300
+22,600
| +18% | +$1.85M |
|
796
Las Vegas Sands
LVS
$30.3B
| $10.2M | 0.01% |
+272,569
| New | +$10.2M |
|
|
ANSS
797
PUT
DELISTED
Ansys
ANSS
| $10.2M | 0.01% |
46,000
+28,600
| +164% | +$7.31M |
|
798
PUT
HubSpot
HUBS
$10.3B
| $10.1M | 0.01% |
37,500
-9,100
| -20% | -$2.89M |
|
799
BP
BP
$113B
| $10.1M | 0.01% |
354,469
-234,805
| -40% | -$6.99M |
|
800
CALL
Dick's Sporting Goods
DKS
$18.4B
| $10.1M | 0.01% |
96,400
-11,600
| -11% | -$1.18M |
|
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.