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 | |
|---|---|---|---|---|---|---|
6851
PUT
Astrana Health
ASTH
$1.76B
| $38K | ﹤0.01% |
1,000
| – | – |
|
|
BFI
6852
CALL
DELISTED
BurgerFi International, Inc. Common Stock
BFI
| $38K | ﹤0.01% |
11,900
-13,600
| -53% | -$47.2K |
|
|
ISUN
6853
DELISTED
iSun, Inc. Common Stock
ISUN
| $38K | ﹤0.01% |
11,852
-5,462
| -32% | -$18.4K |
|
|
IDEX
6854
PUT
DELISTED
Ideanomics, Inc. Common Stock
IDEX
| $38K | ﹤0.01% |
461
-176
| -28% | -$15.9K |
|
|
VRAY
6855
CALL
DELISTED
ViewRay, Inc.
VRAY
| $38K | ﹤0.01% |
14,400
-50,600
| -78% | -$152K |
|
|
CYBE
6856
CALL
DELISTED
Cyberoptics Corp
CYBE
| $38K | ﹤0.01% |
1,100
+800
| +267% | +$32.8K |
|
6857
Absci
ABSI
$1.32B
| $37K | ﹤0.01% |
11,155
+9,851
| +755% | +$49K |
|
6858
Blue Bird Corp
BLBD
$2.35B
| $37K | ﹤0.01% |
+4,032
| New | +$56.5K |
|
6859
CALL
Bank of Hawaii
BOH
$3.15B
| $37K | ﹤0.01% |
500
+400
| +400% | +$30.8K |
|
|
BORR
6860
CALL
Borr Drilling
BORR
$1.24B
| $37K | ﹤0.01% |
+8,200
| New | +$40.7K |
|
6861
Caribou Biosciences
CRBU
$145M
| $37K | ﹤0.01% |
6,907
+4,219
| +157% | +$32.3K |
|
6862
CALL
Commault Systems
CVLT
$4.88B
| $37K | ﹤0.01% |
600
+100
| +20% | +$6.21K |
|
|
6863
Commault Systems
CVLT
$4.88B
| $37K | ﹤0.01% |
591
+318
| +116% | +$19.8K |
|
|
6864
PUT
Commault Systems
CVLT
$4.88B
| $37K | ﹤0.01% |
600
+100
| +20% | +$6.21K |
|
6865
CALL
DiaMedica Therapeutics
DMAC
$342M
| $37K | ﹤0.01% |
18,400
+7,100
| +63% | +$16.6K |
|
6866
CALL
EyePoint Inc
EYPT
$1.03B
| $37K | ﹤0.01% |
4,800
-8,900
| -65% | -$89.5K |
|
6867
PUT
Fennec Pharmaceuticals
FENC
$332M
| $37K | ﹤0.01% |
6,600
+800
| +14% | +$4.64K |
|
6868
Holley
HLLY
$321M
| $37K | ﹤0.01% |
+3,612
| New | +$39.4K |
|
6869
PUT
Hooker Furnishings Corp
HOFT
$150M
| $37K | ﹤0.01% |
2,400
+1,800
| +300% | +$30.7K |
|
6870
PUT
IDT Corp
IDT
$1.64B
| $37K | ﹤0.01% |
1,500
+400
| +36% | +$11K |
|
6871
PUT
Laureate Education
LAUR
$5.28B
| $37K | ﹤0.01% |
3,200
-14,800
| -82% | -$175K |
|
6872
PUT
LG Display
LPL
$3B
| $37K | ﹤0.01% |
6,800
-2,700
| -28% | -$18.3K |
|
6873
PUT
NBT Bancorp
NBTB
$2.74B
| $37K | ﹤0.01% |
1,000
-2,400
| -71% | -$87K |
|
6874
Oric Pharmaceuticals
ORIC
$1.15B
| $37K | ﹤0.01% |
8,297
+6,445
| +348% | +$25.7K |
|
6875
PUT
Saia
SAIA
$9.27B
| $37K | ﹤0.01% |
+200
| New | +$40.2K |
|
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.