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
|
+$179M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$90.1M |
| 3 |
State Street SPDR S&P 500 ETF Trust
SPY
|
+$56M |
| 4 |
iShares Silver Trust
SLV
|
+$41.7M |
| 5 |
Advanced Micro Devices
AMD
|
+$39.8M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Financial Select Sector SPDR ETF
XLF
|
+$42.8M |
| 2 |
Verizon
VZ
|
+$42.5M |
| 3 |
Occidental Petroleum
OXY
|
+$34.7M |
| 4 |
iShares China Large-Cap ETF
FXI
|
+$33M |
| 5 |
Direxion Daily S&P 500 Bull 3x ETF
SPXL
|
+$32.7M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.67% |
| 2 | Consumer Discretionary | 0.37% |
| 3 | Industrials | 0.24% |
| 4 | Healthcare | 0.22% |
| 5 | Financials | 0.19% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
2426
CALL
Canadian National Railway
CNI
$78.3B
| $1.48M | ﹤0.01% |
11,000
+7,300
| +197% | +$913K |
|
2427
PUT
EPR Properties
EPR
$4.86B
| $1.47M | ﹤0.01% |
26,900
+12,900
| +92% | +$625K |
|
2428
PAR Technology
PAR
$637M
| $1.47M | ﹤0.01% |
36,458
+19,322
| +113% | +$792K |
|
|
TTCF
2429
PUT
DELISTED
Tattooed Chef, Inc Class A Common Stock
TTCF
| $1.47M | ﹤0.01% |
116,900
+59,400
| +103% | +$752K |
|
|
SAND
2430
CALL
DELISTED
Sandstorm Gold
SAND
| $1.47M | ﹤0.01% |
181,800
-58,300
| -24% | -$402K |
|
2431
PUT
PubMatic
PUBM
$581M
| $1.47M | ﹤0.01% |
56,200
-3,600
| -6% | -$92.2K |
|
2432
CALL
Zentalis Pharmaceuticals
ZNTL
$308M
| $1.47M | ﹤0.01% |
31,800
+24,600
| +342% | +$1.33M |
|
|
BENE
2433
CALL
DELISTED
Benessere Capital Acquisition Corp. Class A Common Stock
BENE
| $1.47M | ﹤0.01% |
143,200
-76,200
| -35% | -$778K |
|
2434
PUT
Mohawk Industries
MHK
$6.9B
| $1.47M | ﹤0.01% |
11,800
+7,000
| +146% | +$1.05M |
|
2435
System1
SST
$15M
| $1.47M | ﹤0.01% |
+10,099
| New | +$1.24M |
|
2436
Kraft Heinz
KHC
$30.4B
| $1.46M | ﹤0.01% |
37,174
-43,060
| -54% | -$1.61M |
|
2437
PUT
Crown Holdings
CCK
$12.8B
| $1.46M | ﹤0.01% |
11,700
-14,600
| -56% | -$1.73M |
|
2438
Universal Display
OLED
$3.71B
| $1.46M | ﹤0.01% |
8,765
+4,378
| +100% | +$680K |
|
2439
CALL
Galicia Financial Group
GGAL
$7.92B
| $1.46M | ﹤0.01% |
135,200
+57,300
| +74% | +$553K |
|
|
AXON
2440
CALL
Axon Enterprise
AXON
$40.5B
| $1.46M | ﹤0.01% |
10,600
-16,000
| -60% | -$2.19M |
|
2441
CALL
Fox Factory Holding Corp
FOXF
$776M
| $1.46M | ﹤0.01% |
14,900
+11,900
| +397% | +$1.47M |
|
2442
TC Energy
TRP
$73.5B
| $1.46M | ﹤0.01% |
25,827
+25,343
| +5,236% | +$1.33M |
|
2443
CALL
Fortive
FTV
$19B
| $1.46M | ﹤0.01% |
31,715
-16,190
| -34% | -$801K |
|
2444
CALL
Invesco Mortgage Capital
IVR
$776M
| $1.46M | ﹤0.01% |
63,830
-33,500
| -34% | -$824K |
|
2445
CALL
Amphenol
APH
$188B
| $1.45M | ﹤0.01% |
38,600
-47,600
| -55% | -$1.84M |
|
2446
FuelCell Energy
FCEL
$1.7B
| $1.45M | ﹤0.01% |
8,410
-9,792
| -54% | -$1.55M |
|
2447
PUT
Nano X Imaging
NNOX
$62.4M
| $1.45M | ﹤0.01% |
134,000
+95,100
| +244% | +$1.02M |
|
|
CCXI
2448
CALL
DELISTED
ChemoCentryx, Inc.
CCXI
| $1.45M | ﹤0.01% |
57,800
-56,200
| -49% | -$1.58M |
|
|
2449
PUT
System1
SST
$15M
| $1.45M | ﹤0.01% |
+9,980
| New | +$1.22M |
|
2450
PUT
Sprouts Farmers Market
SFM
$7.04B
| $1.45M | ﹤0.01% |
45,200
-30,200
| -40% | -$903K |
|
Similar funds
Simplex Trading's Q1 2022 Portfolio in Review
As of Q1 2022, Simplex Trading held 12,038 positions worth $109B, up 10% from $99B the previous quarter. Its ten largest holdings account for 37% of the portfolio.
Simplex Trading deployed $17.5B of net new capital in Q1 2022, opening 1,603 new positions and adding to 4,441 existing holdings. Its largest new stake was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
By sector, the portfolio is most concentrated in Technology at 0.67% of assets, up from 0.61% a quarter earlier, followed by Consumer Discretionary and Industrials.
On the sell side, the largest reduction was Verizon, an estimated $42.5M trimmed.
- Simplex Trading's largest Q1 2022 buy was iShares 20+ Year Treasury Bond ETF: 652,921 shares worth $86.2M.
- Simplex Trading added most to Apple in Q1 2022, an estimated $179M increase.
- Simplex Trading's biggest Q1 2022 reduction was Verizon, cutting an estimated $42.5M.
- Simplex Trading fully exited State Street Financial Select Sector SPDR ETF in Q1 2022, selling an estimated $42.8M.
- Simplex Trading's ten largest holdings make up 37% of its $109B portfolio in Q1 2022.
- Simplex Trading opened 1,603 new positions and closed 1,637 in Q1 2022.
- Simplex Trading's portfolio value rose 10% quarter-over-quarter to $109B.
Based on Simplex Trading's 13F filing for Q1 2022, filed 2 May 2022.