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 | |
|---|---|---|---|---|---|---|
|
DVAX
1551
CALL
DELISTED
Dynavax Technologies
DVAX
| $2.85M | ﹤0.01% |
226,400
+36,100
| +19% | +$383K |
|
1552
CALL
TripAdvisor
TRIP
$1.59B
| $2.85M | ﹤0.01% |
160,100
-2,100
| -1% | -$49.8K |
|
1553
CALL
Helmerich & Payne
HP
$3.53B
| $2.85M | ﹤0.01% |
66,100
+11,200
| +20% | +$520K |
|
1554
CALL
Marriott Vacations Worldwide
VAC
$3.24B
| $2.85M | ﹤0.01% |
24,500
-3,300
| -12% | -$464K |
|
1555
CALL
Vanguard ESG US Corporate Bond ETF
VCEB
$1.18B
| $2.85M | ﹤0.01% |
26,600
+24,100
| +964% | +$1.55M |
|
1556
PUT
Veru
VERU
$36.1M
| $2.84M | ﹤0.01% |
25,160
+22,490
| +842% | +$2.61M |
|
1557
CALL
KLA
KLAC
$275B
| $2.84M | ﹤0.01% |
89,000
+12,000
| +16% | +$403K |
|
1558
CALL
Yeti Holdings
YETI
$3.82B
| $2.84M | ﹤0.01% |
65,600
+11,900
| +22% | +$578K |
|
1559
PUT
Caesarstone
CSTE
$72.3M
| $2.83M | ﹤0.01% |
309,700
+284,900
| +1,149% | +$2.72M |
|
1560
PUT
Kinder Morgan
KMI
$73.1B
| $2.82M | ﹤0.01% |
168,500
+36,900
| +28% | +$691K |
|
1561
CALL
Alaska Air
ALK
$5.15B
| $2.82M | ﹤0.01% |
70,500
-72,800
| -51% | -$3.55M |
|
1562
CALL
e.l.f. Beauty
ELF
$4.56B
| $2.82M | ﹤0.01% |
92,000
+86,700
| +1,636% | +$2.18M |
|
1563
CALL
Azenta
AZTA
$1.26B
| $2.81M | ﹤0.01% |
39,000
+28,300
| +264% | +$2.12M |
|
1564
CALL
iShares Convertible Bond ETF
ICVT
$7.23B
| $2.81M | ﹤0.01% |
94,400
-23,000
| -20% | -$1.72M |
|
1565
PUT
monday.com
MNDY
$3.27B
| $2.81M | ﹤0.01% |
27,200
+18,800
| +224% | +$2.28M |
|
1566
PUT
Invesco DB Base Metals Fund
DBB
$306M
| $2.8M | ﹤0.01% |
137,600
-64,100
| -32% | -$1.49M |
|
1567
CALL
Albertsons Companies
ACI
$5.4B
| $2.8M | ﹤0.01% |
104,700
+65,800
| +169% | +$2.01M |
|
1568
PUT
Concentrix
CNXC
$1.36B
| $2.79M | ﹤0.01% |
20,600
+8,000
| +63% | +$1.2M |
|
1569
CALL
American Eagle Outfitters
AEO
$2.85B
| $2.79M | ﹤0.01% |
249,900
+92,400
| +59% | +$1.3M |
|
1570
Apollo Global Management
APO
$70.7B
| $2.79M | ﹤0.01% |
57,631
+2,347
| +4% | +$128K |
|
1571
CALL
Hartford Financial Services
HIG
$38.5B
| $2.79M | ﹤0.01% |
42,700
-20,100
| -32% | -$1.41M |
|
1572
PUT
Star Bulk Carriers
SBLK
$3.14B
| $2.79M | ﹤0.01% |
111,700
-42,900
| -28% | -$1.24M |
|
1573
CALL
Tractor Supply
TSCO
$16.3B
| $2.79M | ﹤0.01% |
72,000
+52,500
| +269% | +$2.13M |
|
1574
Cleveland-Cliffs
CLF
$6.81B
| $2.79M | ﹤0.01% |
181,305
+176,991
| +4,103% | +$4.23M |
|
1575
CALL
Public Service Enterprise Group
PEG
$39.8B
| $2.78M | ﹤0.01% |
44,000
+33,900
| +336% | +$2.3M |
|
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.