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 | |
|---|---|---|---|---|---|---|
4526
PUT
Arbutus Biopharma
ABUS
$871M
| $212K | ﹤0.01% |
78,400
-231,600
| -75% | -$593K |
|
4527
CALL
CoreCivic
CXW
$2.95B
| $212K | ﹤0.01% |
19,100
-13,800
| -42% | -$167K |
|
|
HPP
4528
PUT
Hudson Pacific Properties
HPP
$766M
| $212K | ﹤0.01% |
2,043
+2,029
| +14,493% | +$300K |
|
4529
CALL
Mercury Insurance
MCY
$5.91B
| $212K | ﹤0.01% |
4,800
-8,500
| -64% | -$420K |
|
4530
PUT
Old Republic International
ORI
$10.6B
| $212K | ﹤0.01% |
9,500
+6,000
| +171% | +$139K |
|
4531
PUT
Qiagen
QGEN
$8.55B
| $212K | ﹤0.01% |
4,244
-13,580
| -76% | -$663K |
|
|
ACCD
4532
PUT
DELISTED
Accolade Inc
ACCD
| $212K | ﹤0.01% |
28,700
+4,500
| +19% | +$39.4K |
|
4533
PUT
Amplitude
AMPL
$1.14B
| $211K | ﹤0.01% |
14,800
-20,300
| -58% | -$356K |
|
4534
CALL
Calix
CALX
$2.22B
| $211K | ﹤0.01% |
6,200
-3,200
| -34% | -$119K |
|
4535
CALL
Holley
HLLY
$326M
| $211K | ﹤0.01% |
20,100
-300
| -1% | -$3.27K |
|
|
LITS
4536
CALL
Lite Strategy Inc
LITS
$33.6M
| $211K | ﹤0.01% |
17,465
+3,310
| +23% | +$36K |
|
4537
CALL
Alpha and Omega Semiconductor
AOSL
$931M
| $210K | ﹤0.01% |
6,300
-3,000
| -32% | -$123K |
|
4538
Perrigo
PRGO
$1.43B
| $210K | ﹤0.01% |
5,200
-22,966
| -82% | -$853K |
|
4539
PUT
Radware
RDWR
$1.05B
| $210K | ﹤0.01% |
9,700
-1,500
| -13% | -$39.3K |
|
|
NETI
4540
DELISTED
Eneti Inc.
NETI
| $210K | ﹤0.01% |
34,334
-24,661
| -42% | -$158K |
|
|
TTCF
4541
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $210K | ﹤0.01% |
33,486
-15,155
| -31% | -$121K |
|
4542
Andersons Inc
ANDE
$2.44B
| $209K | ﹤0.01% |
6,346
-7,110
| -53% | -$302K |
|
4543
Caesarstone
CSTE
$71.6M
| $209K | ﹤0.01% |
+22,895
| New | +$219K |
|
4544
Cemex
CX
$17.2B
| $209K | ﹤0.01% |
53,387
-31,717
| -37% | -$136K |
|
4545
PUT
Immunocore
IMCR
$1.72B
| $208K | ﹤0.01% |
5,600
+5,200
| +1,300% | +$169K |
|
|
TBHC
4546
PUT
DELISTED
The Brand House Collective
TBHC
| $208K | ﹤0.01% |
59,200
-75,300
| -56% | -$482K |
|
4547
PUT
Progress Software
PRGS
$1.65B
| $208K | ﹤0.01% |
+4,600
| New | +$219K |
|
4548
CALL
Sonic Automotive
SAH
$3.17B
| $208K | ﹤0.01% |
5,700
+5,500
| +2,750% | +$236K |
|
4549
CALL
InfraCap MLP ETF
AMZA
$467M
| $207K | ﹤0.01% |
8,000
+7,200
| +900% | +$218K |
|
|
CMRC
4550
PUT
Commerce.com Inc Series 1
CMRC
$261M
| $207K | ﹤0.01% |
12,800
-5,000
| -28% | -$91.4K |
|
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.