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 | |
|---|---|---|---|---|---|---|
|
SEGG
6351
PUT
Sports Entertainment Gaming Global Corp
SEGG
$1.6M
| $86K | ﹤0.01% |
138
-102
| -43% | -$83.5K |
|
|
RJET
6352
Republic Airways Holdings
RJET
$967M
| $86K | ﹤0.01% |
1,315
-405
| -24% | -$29K |
|
|
MGIC
6353
PUT
DELISTED
Magic Software Enterprises
MGIC
| $86K | ﹤0.01% |
5,000
+4,700
| +1,567% | +$88.1K |
|
6354
CALL
Organogenesis Holdings
ORGO
$305M
| $86K | ﹤0.01% |
11,300
+4,500
| +66% | +$34.8K |
|
6355
CALL
Procore
PCOR
$8.26B
| $86K | ﹤0.01% |
1,500
+1,100
| +275% | +$69.9K |
|
6356
Scansource
SCSC
$1.15B
| $86K | ﹤0.01% |
2,486
+2,284
| +1,131% | +$75.5K |
|
6357
CALL
Seer Inc
SEER
$122M
| $86K | ﹤0.01% |
5,700
-200
| -3% | -$3.1K |
|
|
VMEO
6358
PUT
DELISTED
Vimeo
VMEO
| $86K | ﹤0.01% |
7,300
+100
| +1% | +$1.33K |
|
6359
PUT
V2X
VVX
$2.83B
| $86K | ﹤0.01% |
+2,400
| New | +$103K |
|
6360
PUT
Voyager Therapeutics
VYGR
$183M
| $86K | ﹤0.01% |
11,300
+5,200
| +85% | +$23.2K |
|
|
MAGN
6361
PUT
Magnera Corp
MAGN
$472M
| $86K | ﹤0.01% |
538
-216
| -29% | -$42.8K |
|
|
ISUN
6362
PUT
DELISTED
iSun, Inc. Common Stock
ISUN
| $86K | ﹤0.01% |
21,200
+14,700
| +226% | +$74.5K |
|
|
SUNW
6363
DELISTED
Sunworks, Inc.
SUNW
| $86K | ﹤0.01% |
34,140
+29,659
| +662% | +$75K |
|
|
SUNL
6364
DELISTED
Sunlight Financial Holdings, Inc.
SUNL
| $86K | ﹤0.01% |
853
-1,588
| -65% | -$123K |
|
|
SDIG
6365
CALL
DELISTED
Stronghold Digital Mining, Inc. Class A Common Stock
SDIG
| $86K | ﹤0.01% |
1,480
+950
| +179% | +$99.6K |
|
|
EGLE
6366
DELISTED
Eagle Bulk Shipping Inc.
EGLE
| $86K | ﹤0.01% |
+1,277
| New | +$67.6K |
|
6367
PUT
AquaBounty Technologies
AQB
$4.66M
| $85K | ﹤0.01% |
2,285
+1,145
| +100% | +$39.8K |
|
6368
CALL
CuriosityStream
CURI
$145M
| $85K | ﹤0.01% |
29,600
-20,600
| -41% | -$82.6K |
|
6369
CALL
Glacier Bancorp
GBCI
$6.42B
| $85K | ﹤0.01% |
1,700
+1,600
| +1,600% | +$86.4K |
|
6370
PUT
HNI Corp
HNI
$3.24B
| $85K | ﹤0.01% |
2,300
+200
| +10% | +$8.07K |
|
|
KZR
6371
DELISTED
Kezar Life Sciences
KZR
| $85K | ﹤0.01% |
512
-1,039
| -67% | -$149K |
|
6372
CALL
Lisata Therapeutics
LSTA
$9.02M
| $85K | ﹤0.01% |
7,900
-22,760
| -74% | -$260K |
|
6373
Organon & Co
OGN
$3.56B
| $85K | ﹤0.01% |
+2,444
| New | +$83.6K |
|
6374
PUT
Prudential
PUK
$37.6B
| $85K | ﹤0.01% |
+2,900
| New | +$92.6K |
|
6375
PUT
QuickLogic
QUIK
$232M
| $85K | ﹤0.01% |
15,500
+12,200
| +370% | +$62.1K |
|
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.