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 | |
|---|---|---|---|---|---|---|
4376
CALL
Hyliion Holdings
HYLN
$578M
| $335K | ﹤0.01% |
75,800
-131,300
| -63% | -$580K |
|
|
LAND
4377
PUT
Gladstone Land Corp
LAND
$365M
| $335K | ﹤0.01% |
9,200
+4,800
| +109% | +$155K |
|
4378
Nordic American Tanker
NAT
$1.36B
| $335K | ﹤0.01% |
157,719
+59,178
| +60% | +$105K |
|
4379
CALL
Ondas Inc
ONDS
$3.87B
| $335K | ﹤0.01% |
45,900
-100
| -0.2% | -$535 |
|
4380
CALL
Genprex
GNPX
$3.6M
| $334K | ﹤0.01% |
3
| – | – |
|
|
4381
CALL
Nordic American Tanker
NAT
$1.36B
| $334K | ﹤0.01% |
157,000
+18,000
| +13% | +$31.9K |
|
4382
PUT
Winnebago Industries
WGO
$900M
| $334K | ﹤0.01% |
6,200
-10,200
| -62% | -$659K |
|
4383
Invivyd
IVVD
$160M
| $333K | ﹤0.01% |
73,201
+72,886
| +23,138% | +$446K |
|
4384
PUT
Molina Healthcare
MOH
$10.4B
| $333K | ﹤0.01% |
1,000
-3,300
| -77% | -$1.02M |
|
4385
Direxion Daily Small Cap Bull 3x ETF
TNA
$1.27B
| $333K | ﹤0.01% |
+5,297
| New | +$337K |
|
|
WRK
4386
PUT
DELISTED
WestRock Company
WRK
| $333K | ﹤0.01% |
7,100
-35,700
| -83% | -$1.63M |
|
4387
PUT
Aviat Networks
AVNW
$253M
| $332K | ﹤0.01% |
10,800
-2,700
| -20% | -$78.8K |
|
4388
PUT
Cracker Barrel
CBRL
$1.26B
| $332K | ﹤0.01% |
2,800
-7,000
| -71% | -$868K |
|
4389
Helios Technologies
HLIO
$2.47B
| $332K | ﹤0.01% |
4,148
+1,985
| +92% | +$158K |
|
4390
CALL
Citius Pharmaceuticals
CTXR
$15.6M
| $331K | ﹤0.01% |
7,416
+5,576
| +303% | +$220K |
|
4391
CALL
Gladstone Capital
GLAD
$427M
| $331K | ﹤0.01% |
14,050
+13,550
| +2,710% | +$304K |
|
4392
PUT
Lazard
LAZ
$4B
| $331K | ﹤0.01% |
9,600
+5,500
| +134% | +$213K |
|
|
SII
4393
PUT
Sprott
SII
$2.68B
| $331K | ﹤0.01% |
6,600
| – | – |
|
|
TRVG
4394
trivago
TRVG
$385M
| $331K | ﹤0.01% |
28,095
+6,303
| +29% | +$71K |
|
4395
Cactus
WHD
$3.63B
| $331K | ﹤0.01% |
5,846
+5,773
| +7,908% | +$286K |
|
4396
Vanguard Total Bond Market
BND
$158B
| $330K | ﹤0.01% |
+4,150
| New | +$339K |
|
|
BRT
4397
BRT Apartments
BRT
$284M
| $330K | ﹤0.01% |
13,772
+12,256
| +808% | +$275K |
|
4398
PUT
Credit Acceptance
CACC
$5.82B
| $330K | ﹤0.01% |
600
-300
| -33% | -$163K |
|
4399
PUT
DTE Energy
DTE
$29.9B
| $330K | ﹤0.01% |
2,500
-4,500
| -64% | -$549K |
|
|
GDEN
4400
CALL
DELISTED
Golden Entertainment
GDEN
| $330K | ﹤0.01% |
5,700
-13,100
| -70% | -$670K |
|
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.