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 | |
|---|---|---|---|---|---|---|
4026
PUT
Brinker International
EAT
$8.82B
| $317K | ﹤0.01% |
14,400
-38,800
| -73% | -$1.23M |
|
4027
PUT
inTEST
INTT
$143M
| $317K | ﹤0.01% |
46,500
+45,200
| +3,477% | +$357K |
|
4028
CALL
Jefferies Financial Group
JEF
$12.7B
| $317K | ﹤0.01% |
12,029
-19,560
| -62% | -$578K |
|
4029
PVH
PVH
$4.07B
| $317K | ﹤0.01% |
5,578
-12,187
| -69% | -$843K |
|
|
LILM
4030
CALL
DELISTED
Lilium N.V. Class A Ordinary Shares
LILM
| $317K | ﹤0.01% |
134,600
-8,500
| -6% | -$26.7K |
|
|
NS
4031
CALL
DELISTED
NuStar Energy L.P.
NS
| $317K | ﹤0.01% |
22,700
+10,200
| +82% | +$154K |
|
4032
CALL
Booz Allen Hamilton
BAH
$8.44B
| $316K | ﹤0.01% |
3,500
-13,600
| -80% | -$1.16M |
|
4033
CALL
Alliant Energy
LNT
$18.6B
| $316K | ﹤0.01% |
5,400
+400
| +8% | +$24.1K |
|
4034
CALL
TMC The Metals Company
TMC
$1.49B
| $316K | ﹤0.01% |
307,300
-146,000
| -32% | -$225K |
|
4035
CALL
USA Compression Partners
USAC
$3.69B
| $316K | ﹤0.01% |
18,900
+5,600
| +42% | +$100K |
|
4036
CALL
ADT
ADT
$5.43B
| $315K | ﹤0.01% |
51,300
+2,600
| +5% | +$18.1K |
|
4037
CALL
Snap-on
SNA
$21.5B
| $315K | ﹤0.01% |
1,600
-25,600
| -94% | -$5.45M |
|
4038
CALL
Beyond Air
XAIR
$3.97M
| $315K | ﹤0.01% |
118
+81
| +219% | +$196K |
|
4039
CALL
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$4.81B
| $314K | ﹤0.01% |
8,300
+3,400
| +69% | +$135K |
|
4040
International Money Express
IMXI
$389M
| $314K | ﹤0.01% |
+15,369
| New | +$308K |
|
4041
Centene
CNC
$30.5B
| $313K | ﹤0.01% |
+3,708
| New | +$308K |
|
4042
CALL
LCI Industries
LCII
$2.59B
| $313K | ﹤0.01% |
2,800
+2,100
| +300% | +$230K |
|
4043
CALL
PennantPark Floating Rate Capital
PFLT
$698M
| $313K | ﹤0.01% |
27,300
+16,600
| +155% | +$206K |
|
4044
PUT
Rayonier
RYN
$6.67B
| $313K | ﹤0.01% |
9,259
-15,762
| -63% | -$578K |
|
|
VXRT
4045
CALL
DELISTED
Vaxart
VXRT
| $313K | ﹤0.01% |
89,600
-20,700
| -19% | -$77.3K |
|
4046
CALL
Dana Inc
DAN
$2.88B
| $312K | ﹤0.01% |
22,200
-15,200
| -41% | -$236K |
|
4047
Everest Group
EG
$15.6B
| $312K | ﹤0.01% |
1,115
-701
| -39% | -$198K |
|
4048
Universal Health Services
UHS
$10.2B
| $312K | ﹤0.01% |
+3,100
| New | +$388K |
|
|
ONIT
4049
PUT
Onity Group
ONIT
$342M
| $312K | ﹤0.01% |
11,400
-2,100
| -16% | -$49.4K |
|
|
CCXI
4050
PUT
DELISTED
ChemoCentryx, Inc.
CCXI
| $312K | ﹤0.01% |
12,600
-103,200
| -89% | -$2.27M |
|
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.