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 | |
|---|---|---|---|---|---|---|
2376
Lockheed Martin
LMT
$134B
| $1.54M | ﹤0.01% |
3,497
-25,662
| -88% | -$10.4M |
|
2377
CALL
Hecla Mining
HL
$10.2B
| $1.54M | ﹤0.01% |
234,800
-283,100
| -55% | -$1.64M |
|
|
OLK
2378
CALL
DELISTED
Olink Holding AB (publ) American Depositary Shares
OLK
| $1.54M | ﹤0.01% |
+87,100
| New | +$1.42M |
|
2379
CALL
CBRE Group
CBRE
$40.8B
| $1.54M | ﹤0.01% |
16,800
+6,000
| +56% | +$585K |
|
2380
PUT
Dell
DELL
$283B
| $1.54M | ﹤0.01% |
44,200
-45,200
| -51% | -$2.52M |
|
2381
CALL
Senseonics Holdings Inc
SENS
$254M
| $1.53M | ﹤0.01% |
38,975
+19,160
| +97% | +$877K |
|
|
AVYA
2382
CALL
DELISTED
Avaya Holdings Corp. Common Stock
AVYA
| $1.53M | ﹤0.01% |
121,200
+116,800
| +2,655% | +$1.82M |
|
2383
Regions Financial
RF
$26.3B
| $1.53M | ﹤0.01% |
68,883
+32,345
| +89% | +$761K |
|
2384
CALL
MACOM Technology Solutions
MTSI
$20.4B
| $1.53M | ﹤0.01% |
25,600
-5,000
| -16% | -$313K |
|
2385
CALL
Burlington
BURL
$22B
| $1.53M | ﹤0.01% |
8,400
-8,400
| -50% | -$1.84M |
|
2386
PUT
Floor & Decor
FND
$5.81B
| $1.53M | ﹤0.01% |
18,900
-600
| -3% | -$60.8K |
|
2387
PUT
Herbalife
HLF
$1.23B
| $1.53M | ﹤0.01% |
50,300
+25,600
| +104% | +$1M |
|
2388
CALL
SFL Corp
SFL
$1.59B
| $1.52M | ﹤0.01% |
149,800
+136,800
| +1,052% | +$1.26M |
|
|
ABB
2389
DELISTED
ABB Ltd
ABB
| $1.52M | ﹤0.01% |
+47,142
| New | +$1.64M |
|
|
CCXI
2390
DELISTED
ChemoCentryx, Inc.
CCXI
| $1.52M | ﹤0.01% |
+60,695
| New | +$1.71M |
|
2391
Costamare
CMRE
$1.9B
| $1.52M | ﹤0.01% |
89,200
+51,072
| +134% | +$728K |
|
2392
PUT
TPG
TPG
$6.87B
| $1.52M | ﹤0.01% |
+50,300
| New | +$1.56M |
|
2393
PUT
SentinelOne
S
$6.22B
| $1.51M | ﹤0.01% |
39,100
-31,200
| -44% | -$1.28M |
|
|
PSTH
2394
CALL
DELISTED
Pershing Square Tontine Holdings, Ltd.
PSTH
| $1.51M | ﹤0.01% |
76,000
-104,600
| -58% | -$2.07M |
|
2395
CALL
Immunic
IMUX
$182M
| $1.51M | ﹤0.01% |
13,370
+12,010
| +883% | +$1.39M |
|
2396
CALL
Vail Resorts
MTN
$5.19B
| $1.51M | ﹤0.01% |
5,800
+4,800
| +480% | +$1.31M |
|
|
SAFE
2397
CALL
DELISTED
Safehold Inc.
SAFE
| $1.51M | ﹤0.01% |
27,200
+26,600
| +4,433% | +$1.65M |
|
2398
East-West Bancorp
EWBC
$17.9B
| $1.51M | ﹤0.01% |
+19,068
| New | +$1.61M |
|
2399
PUT
Maximus
MMS
$3.14B
| $1.51M | ﹤0.01% |
20,100
+19,100
| +1,910% | +$1.46M |
|
|
JOYY
2400
PUT
JOYY Inc
JOYY
$3.73B
| $1.5M | ﹤0.01% |
41,000
+30,200
| +280% | +$1.36M |
|
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.