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 |
Apple
AAPL
|
+$286M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$82.3M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$72.6M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$64.2M |
| 5 |
Intel
INTC
|
+$52.9M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$51.5M |
| 2 |
iShares Silver Trust
SLV
|
+$41.8M |
| 3 |
Ford
F
|
+$26.3M |
| 4 |
United Airlines
UAL
|
+$22.7M |
| 5 |
ExxonMobil
XOM
|
+$22.3M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.84% |
| 2 | Communication Services | 0.32% |
| 3 | Consumer Discretionary | 0.32% |
| 4 | Financials | 0.28% |
| 5 | Healthcare | 0.2% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
5451
PUT
Rhythm Pharmaceuticals
RYTM
$6.81B
| $110K | ﹤0.01% |
26,700
+21,800
| +445% | +$119K |
|
5452
CALL
Simpson Manufacturing
SSD
$7.72B
| $110K | ﹤0.01% |
1,100
-500
| -31% | -$51.9K |
|
|
VLRS
5453
Controladora Vuela Compania de Aviacion
VLRS
$900M
| $110K | ﹤0.01% |
10,718
-17,143
| -62% | -$254K |
|
5454
Vanguard Morningstar Mid-Cap Growth ETF
VOT
$19.2B
| $110K | ﹤0.01% |
632
+200
| +46% | +$38.7K |
|
|
CNH
5455
PUT
CNH Industrial
CNH
$12.7B
| $110K | ﹤0.01% |
9,500
-35,300
| -79% | -$503K |
|
|
ROCC
5456
DELISTED
Ranger Oil Corporation Class A Common Stock
ROCC
| $110K | ﹤0.01% |
3,362
-350
| -9% | -$13.2K |
|
5457
PUT
American Homes 4 Rent
AMH
$12B
| $109K | ﹤0.01% |
3,100
+2,900
| +1,450% | +$110K |
|
|
ARR
5458
Armour Residential REIT
ARR
$2.33B
| $109K | ﹤0.01% |
3,112
-6,894
| -69% | -$256K |
|
5459
CALL
Core & Main
CNM
$8.23B
| $109K | ﹤0.01% |
4,900
-100
| -2% | -$2.32K |
|
5460
PUT
Diodes
DIOD
$3.78B
| $109K | ﹤0.01% |
1,700
+300
| +21% | +$21.9K |
|
5461
PUT
Fossil Group
FOSL
$293M
| $109K | ﹤0.01% |
21,200
+9,700
| +84% | +$78.5K |
|
|
GOCO
5462
CALL
DELISTED
GoHealth
GOCO
| $109K | ﹤0.01% |
12,240
-527
| -4% | -$6.13K |
|
|
HOUS
5463
CALL
DELISTED
Anywhere Real Estate
HOUS
| $109K | ﹤0.01% |
11,100
-2,600
| -19% | -$30.6K |
|
5464
National Health Investors
NHI
$3.72B
| $109K | ﹤0.01% |
+1,804
| New | +$103K |
|
5465
CALL
RenaissanceRe
RNR
$13.3B
| $109K | ﹤0.01% |
700
+500
| +250% | +$75.7K |
|
|
MDC
5466
CALL
DELISTED
M.D.C. Holdings, Inc.
MDC
| $109K | ﹤0.01% |
3,400
-4,500
| -57% | -$161K |
|
5467
CALL
Conduent
CNDT
$244M
| $108K | ﹤0.01% |
25,000
-55,100
| -69% | -$277K |
|
5468
CryoPort
CYRX
$761M
| $108K | ﹤0.01% |
+3,497
| New | +$93K |
|
5469
NovoCure
NVCR
$1.73B
| $108K | ﹤0.01% |
1,568
-6,137
| -80% | -$462K |
|
|
PROF
5470
CALL
Profound Medical
PROF
$268M
| $108K | ﹤0.01% |
14,900
+800
| +6% | +$6.33K |
|
5471
PUT
UGI
UGI
$7.74B
| $108K | ﹤0.01% |
2,800
-1,000
| -26% | -$38.8K |
|
5472
CALL
Veeco
VECO
$3.05B
| $108K | ﹤0.01% |
5,600
-3,200
| -36% | -$71K |
|
|
BMTX
5473
CALL
DELISTED
BM Technologies, Inc.
BMTX
| $108K | ﹤0.01% |
18,500
-31,900
| -63% | -$223K |
|
|
SURF
5474
CALL
DELISTED
Surface Oncology, Inc. Common Stock
SURF
| $108K | ﹤0.01% |
66,000
+42,200
| +177% | +$87.6K |
|
|
BRMK
5475
DELISTED
Broadmark Realty Capital Inc. Common Stock
BRMK
| $108K | ﹤0.01% |
16,176
+8,110
| +101% | +$61.2K |
|
Similar funds
Simplex Trading's Q2 2022 Portfolio in Review
As of Q2 2022, Simplex Trading held 11,810 positions worth $94.1B, down 14% from $109B the previous quarter. Its ten largest holdings account for 40% of the portfolio.
Simplex Trading deployed $11.3B of net new capital in Q2 2022, opening 1,405 new positions and adding to 4,027 existing holdings. Its largest new stake was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
By sector, the portfolio is most concentrated in Technology at 0.84% of assets, up from 0.67% a quarter earlier, followed by Communication Services and Consumer Discretionary.
On the sell side, the largest reduction was United Airlines, an estimated $22.7M trimmed.
- Simplex Trading's largest Q2 2022 buy was Alphabet (Google) Class C: 543,540 shares worth $59.4M.
- Simplex Trading added most to Apple in Q2 2022, an estimated $286M increase.
- Simplex Trading's biggest Q2 2022 reduction was United Airlines, cutting an estimated $22.7M.
- Simplex Trading fully exited State Street SPDR S&P 500 ETF Trust in Q2 2022, selling an estimated $51.5M.
- Simplex Trading's ten largest holdings make up 40% of its $94.1B portfolio in Q2 2022.
- Simplex Trading opened 1,405 new positions and closed 1,792 in Q2 2022.
- Simplex Trading's portfolio value fell 14% quarter-over-quarter to $94.1B.
Based on Simplex Trading's 13F filing for Q2 2022, filed 3 Aug 2022.