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 | |
|---|---|---|---|---|---|---|
3851
Trinity Capital Inc.
TRIN
$1.58B
| $362K | ﹤0.01% |
25,047
+20,169
| +413% | +$330K |
|
3852
CALL
Aemetis
AMTX
$99.2M
| $361K | ﹤0.01% |
73,600
+10,700
| +17% | +$93.5K |
|
3853
Arcutis Biotherapeutics
ARQT
$3.48B
| $361K | ﹤0.01% |
16,985
+15,177
| +839% | +$311K |
|
|
LAND
3854
PUT
Gladstone Land Corp
LAND
$365M
| $361K | ﹤0.01% |
16,300
+7,100
| +77% | +$214K |
|
3855
Madison Square Garden
MSGS
$9.59B
| $361K | ﹤0.01% |
2,395
+1,018
| +74% | +$165K |
|
|
WW
3856
PUT
DELISTED
WW International
WW
| $361K | ﹤0.01% |
56,600
+13,200
| +30% | +$111K |
|
|
HLGN
3857
CALL
DELISTED
Heliogen, Inc.
HLGN
| $361K | ﹤0.01% |
4,897
-3,752
| -43% | -$488K |
|
|
ATIP
3858
CALL
DELISTED
ATI Physical Therapy, Inc.
ATIP
| $361K | ﹤0.01% |
5,130
-626
| -11% | -$55.4K |
|
3859
CALL
Gogoro
GGR
$56.6M
| $360K | ﹤0.01% |
+2,355
| New | +$320K |
|
3860
PUT
SIGA Technologies
SIGA
$240M
| $360K | ﹤0.01% |
+31,100
| New | +$280K |
|
3861
PUT
SunCoke Energy
SXC
$794M
| $360K | ﹤0.01% |
53,000
+50,700
| +2,204% | +$409K |
|
3862
CALL
BRC Group Holdings
RILY
$264M
| $359K | ﹤0.01% |
8,500
+4,600
| +118% | +$241K |
|
3863
CALL
Certara
CERT
$1.26B
| $358K | ﹤0.01% |
16,700
+14,300
| +596% | +$282K |
|
3864
CALL
Suburban Propane Partners
SPH
$1.21B
| $358K | ﹤0.01% |
23,500
+13,700
| +140% | +$227K |
|
3865
PUT
Vontier
VNT
$4.54B
| $358K | ﹤0.01% |
15,600
+14,900
| +2,129% | +$382K |
|
3866
DigitalBridge
DBRG
$2.92B
| $357K | ﹤0.01% |
18,323
+807
| +5% | +$19.7K |
|
|
LADR
3867
Ladder Capital
LADR
$1.24B
| $357K | ﹤0.01% |
33,872
+20,955
| +162% | +$238K |
|
|
RADI
3868
CALL
DELISTED
Radius Global Infrastructure, Inc. Class A Common Stock
RADI
| $357K | ﹤0.01% |
23,400
-52,400
| -69% | -$754K |
|
|
ESTE
3869
CALL
DELISTED
Earthstone Energy Inc. Class A Common Stock
ESTE
| $357K | ﹤0.01% |
26,200
+21,000
| +404% | +$330K |
|
3870
CALL
Broadridge
BR
$18.4B
| $356K | ﹤0.01% |
2,500
+300
| +14% | +$43.5K |
|
3871
PUT
Cellebrite
CLBT
$3.76B
| $355K | ﹤0.01% |
69,700
+68,700
| +6,870% | +$357K |
|
3872
FlexShares Global Upstream Natural Resources Index Fund
GUNR
$7.19B
| $355K | ﹤0.01% |
8,968
+5,179
| +137% | +$234K |
|
3873
PUT
Levi Strauss
LEVI
$9.49B
| $355K | ﹤0.01% |
21,800
-13,800
| -39% | -$249K |
|
3874
CALL
Vulcan Materials
VMC
$36.8B
| $355K | ﹤0.01% |
2,500
-12,500
| -83% | -$2.06M |
|
3875
PUT
Beyond Air
XAIR
$3.97M
| $355K | ﹤0.01% |
133
+37
| +39% | +$89.6K |
|
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.