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 | |
|---|---|---|---|---|---|---|
|
CVT
5526
PUT
DELISTED
Cvent Holding Corp. Common Stock
CVT
| $103K | ﹤0.01% |
22,500
+700
| +3% | +$4.08K |
|
|
ESTE
5527
PUT
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
| $103K | ﹤0.01% |
7,600
-7,300
| -49% | -$115K |
|
5528
CALL
American Resources Corp
AREC
$191M
| $102K | ﹤0.01% |
70,900
-23,600
| -25% | -$42K |
|
5529
PUT
Aspen Aerogels
ASPN
$384M
| $102K | ﹤0.01% |
10,400
+9,700
| +1,386% | +$196K |
|
5530
CALL
AZZ Inc
AZZ
$4.35B
| $102K | ﹤0.01% |
2,500
-200
| -7% | -$8.98K |
|
5531
PUT
Buckle
BKE
$2.25B
| $102K | ﹤0.01% |
3,700
-800
| -18% | -$25.1K |
|
5532
Core Laboratories
CLB
$488M
| $102K | ﹤0.01% |
5,159
-7,972
| -61% | -$212K |
|
|
TDAY
5533
USA Today Co
TDAY
$1.27B
| $102K | ﹤0.01% |
+35,282
| New | +$134K |
|
5534
CALL
Marten Transport
MRTN
$1.21B
| $102K | ﹤0.01% |
6,100
+3,600
| +144% | +$61.9K |
|
|
SOHU
5535
CALL
Sohu.com
SOHU
$362M
| $102K | ﹤0.01% |
6,200
-10,700
| -63% | -$167K |
|
5536
PUT
Q32 Bio
QTTB
$466M
| $102K | ﹤0.01% |
2,894
-2,912
| -50% | -$99.4K |
|
|
CIR
5537
DELISTED
CIRCOR International, Inc
CIR
| $102K | ﹤0.01% |
6,279
+740
| +13% | +$14.8K |
|
|
EGLE
5538
DELISTED
Eagle Bulk Shipping Inc.
EGLE
| $102K | ﹤0.01% |
1,979
+702
| +55% | +$44.9K |
|
|
AEVA
5539
CALL
Aeva Technologies
AEVA
$1.2B
| $101K | ﹤0.01% |
6,500
-13,100
| -67% | -$216K |
|
5540
G-III Apparel Group
GIII
$1.54B
| $101K | ﹤0.01% |
5,016
+267
| +6% | +$6.74K |
|
5541
PUT
Green Brick Partners
GRBK
$3.04B
| $101K | ﹤0.01% |
5,200
-19,900
| -79% | -$418K |
|
5542
CALL
Haverty Furniture Companies
HVT
$397M
| $101K | ﹤0.01% |
4,400
+3,300
| +300% | +$88K |
|
5543
PUT
Sturm, Ruger & Co
RGR
$594M
| $101K | ﹤0.01% |
1,600
-3,500
| -69% | -$235K |
|
5544
PUT
BRC Group Holdings
RILY
$288M
| $101K | ﹤0.01% |
2,400
-8,000
| -77% | -$420K |
|
5545
Tenable Holdings
TENB
$3.6B
| $101K | ﹤0.01% |
+2,238
| New | +$115K |
|
|
WIMI
5546
CALL
WiMi Hologram Cloud
WIMI
$22.1M
| $101K | ﹤0.01% |
4,680
+940
| +25% | +$19.6K |
|
|
JOYY
5547
PUT
JOYY Inc
JOYY
$3.71B
| $101K | ﹤0.01% |
3,400
-37,600
| -92% | -$1.38M |
|
|
RTL
5548
CALL
DELISTED
The Necessity Retail REIT, Inc. Class A Common Stock
RTL
| $101K | ﹤0.01% |
13,900
-11,100
| -44% | -$83.6K |
|
5549
PUT
Arrow Electronics
ARW
$11.1B
| $100K | ﹤0.01% |
900
+600
| +200% | +$70K |
|
5550
Cracker Barrel
CBRL
$1.26B
| $100K | ﹤0.01% |
+1,208
| New | +$125K |
|
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.