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 | |
|---|---|---|---|---|---|---|
|
FOLD
5176
DELISTED
Amicus Therapeutics
FOLD
| $129K | ﹤0.01% |
+12,376
| New | +$138K |
|
5177
PUT
InterDigital
IDCC
$8.27B
| $129K | ﹤0.01% |
3,200
+2,600
| +433% | +$140K |
|
5178
CALL
Titan International
TWI
$473M
| $129K | ﹤0.01% |
10,700
-29,100
| -73% | -$417K |
|
5179
Vanguard Intermediate-Term Treasury ETF
VGIT
$41.7B
| $129K | ﹤0.01% |
2,222
+1,484
| +201% | +$90K |
|
5180
CALL
Beazer Homes USA
BZH
$909M
| $128K | ﹤0.01% |
13,300
+3,400
| +34% | +$46.6K |
|
|
CMPS
5181
Compass Pathways
CMPS
$1.58B
| $128K | ﹤0.01% |
12,020
+6,533
| +119% | +$97.9K |
|
5182
Costamare
CMRE
$1.85B
| $128K | ﹤0.01% |
14,307
+4,051
| +39% | +$44.7K |
|
5183
PUT
Healthpeak Properties
DOC
$14.9B
| $128K | ﹤0.01% |
5,600
+3,400
| +155% | +$89.8K |
|
5184
PUT
FNB Corp
FNB
$6.92B
| $128K | ﹤0.01% |
11,100
-1,300
| -10% | -$15.4K |
|
5185
PUT
Group 1 Automotive
GPI
$3.48B
| $128K | ﹤0.01% |
900
+200
| +29% | +$34.3K |
|
5186
Polestar Automotive Holding UK
PSNY
$2.13B
| $128K | ﹤0.01% |
849
+286
| +51% | +$71.9K |
|
5187
CALL
Tenable Holdings
TENB
$3.92B
| $128K | ﹤0.01% |
3,700
-15,300
| -81% | -$642K |
|
5188
CALL
Tetra Tech
TTEK
$8.95B
| $128K | ﹤0.01% |
5,000
+2,500
| +100% | +$70K |
|
|
NM
5189
DELISTED
Navios Maritime Holdings Inc.
NM
| $128K | ﹤0.01% |
67,529
+28,784
| +74% | +$63.6K |
|
|
IDEX
5190
CALL
DELISTED
Ideanomics, Inc. Common Stock
IDEX
| $128K | ﹤0.01% |
3,738
+1,415
| +61% | +$107K |
|
5191
PUT
Amkor Technology
AMKR
$13.8B
| $127K | ﹤0.01% |
7,500
+1,000
| +15% | +$19.2K |
|
|
AVDX
5192
PUT
DELISTED
AvidXchange
AVDX
| $127K | ﹤0.01% |
15,100
-800
| -5% | -$6.2K |
|
5193
PUT
Cerus
CERS
$437M
| $127K | ﹤0.01% |
35,500
+6,500
| +22% | +$31.1K |
|
5194
California Resources
CRC
$4.64B
| $127K | ﹤0.01% |
3,327
+2,094
| +170% | +$91K |
|
5195
Global X Autonomous & Electric Vehicles ETF
DRIV
$431M
| $127K | ﹤0.01% |
6,348
-4,695
| -43% | -$109K |
|
5196
CALL
Evolus
EOLS
$397M
| $127K | ﹤0.01% |
15,800
+11,900
| +305% | +$126K |
|
5197
CALL
Haleon
HLN
$42.9B
| $127K | ﹤0.01% |
+21,000
| New | +$136K |
|
5198
CALL
Renaissance International IPO ETF
IPOS
$11.7M
| $127K | ﹤0.01% |
4,500
-4,500
| -50% | -$76K |
|
5199
CALL
Korro Bio
KRRO
$159M
| $127K | ﹤0.01% |
1,428
+1,386
| +3,300% | +$141K |
|
5200
CALL
Nordson
NDSN
$17.2B
| $127K | ﹤0.01% |
600
+500
| +500% | +$112K |
|
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.