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 | |
|---|---|---|---|---|---|---|
3376
Toast
TOST
$17.9B
| $710K | ﹤0.01% |
+32,713
| New | +$739K |
|
|
CNH
3377
PUT
CNH Industrial
CNH
$13.7B
| $710K | ﹤0.01% |
44,800
-8,858
| -17% | -$138K |
|
3378
CALL
NeoGenomics
NEO
$1.71B
| $709K | ﹤0.01% |
58,400
+51,300
| +723% | +$1.08M |
|
|
CTEV
3379
CALL
Claritev Corp
CTEV
$372M
| $709K | ﹤0.01% |
3,790
+3,277
| +639% | +$540K |
|
3380
CALL
Boise Cascade
BCC
$2.75B
| $708K | ﹤0.01% |
10,200
+7,400
| +264% | +$557K |
|
3381
CALL
Maravai LifeSciences
MRVI
$987M
| $708K | ﹤0.01% |
20,100
+15,500
| +337% | +$520K |
|
|
DCH
3382
PUT
Dauch Corp
DCH
$1.32B
| $707K | ﹤0.01% |
91,200
+72,400
| +385% | +$618K |
|
3383
CALL
Public Service Enterprise Group
PEG
$39.5B
| $707K | ﹤0.01% |
10,100
-6,900
| -41% | -$457K |
|
3384
PUT
Upbound Group
UPBD
$1.2B
| $707K | ﹤0.01% |
28,100
+15,600
| +125% | +$564K |
|
|
STOR
3385
PUT
DELISTED
STORE Capital Corporation
STOR
| $707K | ﹤0.01% |
24,200
+14,600
| +152% | +$450K |
|
3386
CALL
Viper Energy
VNOM
$8.4B
| $706K | ﹤0.01% |
23,900
-18,100
| -43% | -$501K |
|
3387
PUT
Ollie's Bargain Outlet
OLLI
$4.04B
| $704K | ﹤0.01% |
16,400
+10,200
| +165% | +$455K |
|
3388
Tidewater
TDW
$3.91B
| $704K | ﹤0.01% |
+32,400
| New | +$513K |
|
3389
CALL
Arrowhead Research
ARWR
$12B
| $703K | ﹤0.01% |
15,300
-61,700
| -80% | -$3.05M |
|
3390
PUT
Levi Strauss
LEVI
$9.83B
| $703K | ﹤0.01% |
35,600
-4,000
| -10% | -$86.3K |
|
|
BPMC
3391
PUT
DELISTED
Blueprint Medicines
BPMC
| $702K | ﹤0.01% |
11,000
+10,500
| +2,100% | +$754K |
|
3392
Invesco S&P SmallCap 600 Pure Value ETF
RZV
$293M
| $702K | ﹤0.01% |
7,260
-712
| -9% | -$67.9K |
|
3393
PUT
Skywest
SKYW
$4.37B
| $701K | ﹤0.01% |
24,300
+11,100
| +84% | +$363K |
|
3394
Alto Ingredients
ALTO
$349M
| $700K | ﹤0.01% |
102,761
-146,680
| -59% | -$821K |
|
3395
PUT
Celanese
CE
$4.87B
| $700K | ﹤0.01% |
4,900
+1,700
| +53% | +$260K |
|
3396
Lantheus
LNTH
$7.03B
| $700K | ﹤0.01% |
12,658
+3,920
| +45% | +$147K |
|
|
CHNG
3397
DELISTED
Change Healthcare Inc. Common Stock
CHNG
| $700K | ﹤0.01% |
32,129
+4,583
| +17% | +$95.2K |
|
|
ABK
3398
PUT
DELISTED
Ambac Financial Group
ABK
| $700K | ﹤0.01% |
67,400
+13,200
| +24% | +$137K |
|
3399
PUT
BCE
BCE
$19.8B
| $698K | ﹤0.01% |
12,600
-7,400
| -37% | -$392K |
|
3400
CALL
Huntington Ingalls Industries
HII
$11.4B
| $698K | ﹤0.01% |
3,500
-8,000
| -70% | -$1.56M |
|
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.