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 | |
|---|---|---|---|---|---|---|
3801
NXP Semiconductors
NXPI
$60.8B
| $378K | ﹤0.01% |
+2,557
| New | +$444K |
|
3802
Rekor Systems
REKR
$82.6M
| $378K | ﹤0.01% |
215,271
+210,017
| +3,997% | +$599K |
|
3803
CALL
Ginkgo Bioworks
DNA
$498M
| $377K | ﹤0.01% |
3,968
-1,992
| -33% | -$243K |
|
|
TEN
3804
Tsakos Energy Navigation Ltd
TEN
$1.19B
| $377K | ﹤0.01% |
42,083
-22,170
| -35% | -$241K |
|
3805
BellRing Brands
BRBR
$1.55B
| $376K | ﹤0.01% |
+15,124
| New | +$370K |
|
3806
iShares 0-5 Year TIPS Bond ETF
STIP
$15.9B
| $376K | ﹤0.01% |
+3,709
| New | +$383K |
|
3807
CALL
Veracyte
VCYT
$4.45B
| $376K | ﹤0.01% |
18,900
+17,900
| +1,790% | +$362K |
|
|
VGR
3808
CALL
DELISTED
Vector Group Ltd.
VGR
| $376K | ﹤0.01% |
38,000
-3,300
| -8% | -$39.6K |
|
3809
CALL
Consensus Cloud Solutions
CCSI
$675M
| $375K | ﹤0.01% |
8,600
+8,300
| +2,767% | +$413K |
|
3810
PUT
Costamare
CMRE
$1.85B
| $375K | ﹤0.01% |
31,000
+9,100
| +42% | +$126K |
|
|
MITT
3811
TPG Mortgage Investment Trust
MITT
$228M
| $375K | ﹤0.01% |
55,619
-23,343
| -30% | -$179K |
|
3812
CALL
Viking Therapeutics
VKTX
$3.88B
| $375K | ﹤0.01% |
129,900
+111,800
| +618% | +$277K |
|
|
ETRN
3813
CALL
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $375K | ﹤0.01% |
59,100
-11,100
| -16% | -$85.6K |
|
|
HT
3814
CALL
DELISTED
Hersha Hospitality Trust Priority Class A Common Shares of Beneficial Interest
HT
| $375K | ﹤0.01% |
38,300
+200
| +0.5% | +$2K |
|
3815
PUT
BlueLinx
BXC
$430M
| $374K | ﹤0.01% |
5,600
-6,500
| -54% | -$488K |
|
3816
PUT
Robert Half
RHI
$4.11B
| $374K | ﹤0.01% |
5,000
+4,100
| +456% | +$389K |
|
|
WWE
3817
PUT
DELISTED
World Wrestling Entertainment
WWE
| $374K | ﹤0.01% |
6,000
+1,200
| +25% | +$74.2K |
|
3818
CALL
Arch Capital
ACGL
$36.5B
| $373K | ﹤0.01% |
8,200
-26,200
| -76% | -$1.21M |
|
3819
CALL
Dorman Products
DORM
$4.22B
| $373K | ﹤0.01% |
3,400
-500
| -13% | -$49.5K |
|
|
FLNA
3820
Filana Therapeutics
FLNA
$42M
| $373K | ﹤0.01% |
13,276
+7,235
| +120% | +$183K |
|
|
IRNT
3821
CALL
DELISTED
IronNet, Inc.
IRNT
| $373K | ﹤0.01% |
168,800
-36,700
| -18% | -$104K |
|
3822
PUT
Box
BOX
$4.49B
| $372K | ﹤0.01% |
14,800
-15,700
| -51% | -$439K |
|
3823
PUT
Integra LifeSciences
IART
$1.28B
| $372K | ﹤0.01% |
+6,900
| New | +$414K |
|
3824
CALL
Quantum-Si Incorporated
QSI
$153M
| $372K | ﹤0.01% |
160,600
+56,100
| +54% | +$215K |
|
3825
Suburban Propane Partners
SPH
$1.21B
| $372K | ﹤0.01% |
24,409
-11,158
| -31% | -$185K |
|
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.