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 | |
|---|---|---|---|---|---|---|
6476
CALL
DLH Holdings
DLHC
$70.7M
| $50K | ﹤0.01% |
3,300
+1,000
| +43% | +$16.3K |
|
6477
PUT
Essent Group
ESNT
$6.08B
| $50K | ﹤0.01% |
1,300
-2,500
| -66% | -$102K |
|
6478
Federal Realty Investment Trust
FRT
$10.7B
| $50K | ﹤0.01% |
+530
| New | +$59.5K |
|
6479
CALL
Group 1 Automotive
GPI
$3.42B
| $50K | ﹤0.01% |
300
-30,700
| -99% | -$5.34M |
|
6480
PUT
Goldman Sachs BDC
GSBD
$969M
| $50K | ﹤0.01% |
3,000
+1,000
| +50% | +$18.5K |
|
6481
CALL
Knowles
KN
$3.13B
| $50K | ﹤0.01% |
2,900
+1,800
| +164% | +$33.8K |
|
6482
CALL
Kornit Digital
KRNT
$705M
| $50K | ﹤0.01% |
1,600
+1,300
| +433% | +$68.8K |
|
6483
MiMedx Group
MDXG
$602M
| $50K | ﹤0.01% |
14,541
-17,456
| -55% | -$68.4K |
|
6484
CALL
MaxLinear
MXL
$6.06B
| $50K | ﹤0.01% |
1,500
-9,600
| -86% | -$402K |
|
6485
Pangaea Logistics
PANL
$498M
| $50K | ﹤0.01% |
10,024
-7,355
| -42% | -$40.3K |
|
6486
PUT
Qualys
QLYS
$5.1B
| $50K | ﹤0.01% |
400
+100
| +33% | +$13.1K |
|
6487
RPM International
RPM
$13.7B
| $50K | ﹤0.01% |
+640
| New | +$53.8K |
|
|
ECHO
6488
CALL
EchoStar
ECHO
$24.4B
| $50K | ﹤0.01% |
2,600
-600
| -19% | -$13.5K |
|
|
SF
6489
CALL
Stifel
SF
$12.6B
| $50K | ﹤0.01% |
1,350
| – | – |
|
6490
CALL
United States Antimony
UAMY
$751M
| $50K | ﹤0.01% |
124,800
+88,200
| +241% | +$38.3K |
|
|
UROY
6491
PUT
Uranium Royalty Corp
UROY
$1.3B
| $50K | ﹤0.01% |
22,300
+4,300
| +24% | +$13.8K |
|
6492
GeneDx Holdings
WGS
$1.93B
| $50K | ﹤0.01% |
1,207
+129
| +12% | +$8.75K |
|
|
SLGC
6493
CALL
DELISTED
SomaLogic, Inc. Class A Common Stock
SLGC
| $50K | ﹤0.01% |
11,200
-75,200
| -87% | -$447K |
|
|
EBET
6494
DELISTED
EBET, INC. Common Stock
EBET
| $50K | ﹤0.01% |
707
+353
| +100% | +$41.2K |
|
|
COUP
6495
DELISTED
Coupa Software Incorporated
COUP
| $50K | ﹤0.01% |
890
-9,377
| -91% | -$723K |
|
|
DRE
6496
DELISTED
Duke Realty Corp.
DRE
| $50K | ﹤0.01% |
+925
| New | +$50.6K |
|
|
CFRX
6497
PUT
DELISTED
ContraFect Corporation
CFRX
| $50K | ﹤0.01% |
+208
| New | +$58.7K |
|
|
RYM
6498
CALL
RYTHM Inc
RYM
$39.5M
| $49K | ﹤0.01% |
8
-4
| -33% | -$34K |
|
|
AVNS
6499
CALL
DELISTED
Avanos Medical
AVNS
| $49K | ﹤0.01% |
1,800
-2,900
| -62% | -$83.3K |
|
6500
PUT
BARK
BARK
$81.8M
| $49K | ﹤0.01% |
1,940
-715
| -27% | -$36.1K |
|
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.