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 | |
|---|---|---|---|---|---|---|
2501
CALL
Stem
STEM
$50M
| $1.1M | ﹤0.01% |
7,720
+2,845
| +58% | +$473K |
|
2502
PUT
10x Genomics
TXG
$5.83B
| $1.1M | ﹤0.01% |
24,400
+15,600
| +177% | +$809K |
|
|
HIVE
2503
CALL
HIVE Digital Technologies
HIVE
$789M
| $1.1M | ﹤0.01% |
369,000
+292,880
| +385% | +$1.69M |
|
|
MRSH
2504
PUT
Marsh
MRSH
$87.5B
| $1.1M | ﹤0.01% |
7,100
-9,000
| -56% | -$1.44M |
|
|
DCT
2505
CALL
DELISTED
Duck Creek Technologies, Inc. Common Stock
DCT
| $1.1M | ﹤0.01% |
74,000
+16,600
| +29% | +$292K |
|
2506
PUT
Exelixis
EXEL
$14B
| $1.1M | ﹤0.01% |
52,700
-7,700
| -13% | -$159K |
|
2507
CALL
ARS Pharmaceuticals
SPRY
$572M
| $1.1M | ﹤0.01% |
258,500
+246,200
| +2,002% | +$859K |
|
2508
CALL
America Movil
AMX
$77.1B
| $1.09M | ﹤0.01% |
53,600
+3,800
| +8% | +$78.1K |
|
|
NNDM
2509
Nano Dimension
NNDM
$312M
| $1.09M | ﹤0.01% |
348,670
-67,910
| -16% | -$201K |
|
|
BERY
2510
CALL
DELISTED
Berry Global Group, Inc.
BERY
| $1.09M | ﹤0.01% |
21,780
+8,712
| +67% | +$452K |
|
|
EVFM
2511
CALL
DELISTED
Evofem Biosciences, Inc. Common Stock
EVFM
| $1.09M | ﹤0.01% |
967,100
+919,047
| +1,913% | +$1.52M |
|
2512
PUT
Casey's General Stores
CASY
$31.6B
| $1.09M | ﹤0.01% |
5,900
+5,800
| +5,800% | +$1.17M |
|
2513
CALL
FIGS
FIGS
$1.66B
| $1.09M | ﹤0.01% |
119,800
-143,800
| -55% | -$1.83M |
|
2514
CALL
Mohawk Industries
MHK
$7.05B
| $1.09M | ﹤0.01% |
8,800
+2,900
| +49% | +$385K |
|
2515
Transocean
RIG
$5.84B
| $1.09M | ﹤0.01% |
327,673
-444,464
| -58% | -$1.8M |
|
|
BNFT
2516
PUT
DELISTED
Benefitfocus, Inc.
BNFT
| $1.09M | ﹤0.01% |
140,300
+89,100
| +174% | +$879K |
|
2517
PUT
Keurig Dr Pepper
KDP
$41B
| $1.09M | ﹤0.01% |
30,800
+14,000
| +83% | +$508K |
|
2518
PUT
Boston Beer
SAM
$1.91B
| $1.09M | ﹤0.01% |
3,600
-3,000
| -45% | -$1.04M |
|
|
NSTG
2519
DELISTED
NanoString Technologies, Inc.
NSTG
| $1.09M | ﹤0.01% |
85,794
+84,881
| +9,297% | +$1.58M |
|
2520
PUT
Antero Midstream
AM
$10.4B
| $1.09M | ﹤0.01% |
120,200
+49,200
| +69% | +$512K |
|
2521
PUT
Invesco
IVZ
$13.3B
| $1.09M | ﹤0.01% |
67,400
-52,700
| -44% | -$997K |
|
2522
PUT
Banco Santander
SAN
$200B
| $1.09M | ﹤0.01% |
387,900
+6,700
| +2% | +$20.5K |
|
2523
CALL
Synaptics
SYNA
$4.55B
| $1.09M | ﹤0.01% |
9,200
-7,100
| -44% | -$1.04M |
|
2524
CALL
Louisiana-Pacific
LPX
$5.19B
| $1.08M | ﹤0.01% |
20,700
-52,900
| -72% | -$3.39M |
|
|
TE
2525
PUT
T1 Energy
TE
$1.37B
| $1.08M | ﹤0.01% |
158,500
-103,100
| -39% | -$903K |
|
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.