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 | |
|---|---|---|---|---|---|---|
376
PUT
Hilton Worldwide
HLT
$73.8B
| $34.7M | 0.03% |
228,400
-78,100
| -25% | -$11.5M |
|
377
PUT
RH
RH
$3.31B
| $34.6M | 0.03% |
106,200
+51,400
| +94% | +$20.6M |
|
378
PUT
NextEra Energy
NEE
$186B
| $34.2M | 0.03% |
404,300
-91,600
| -18% | -$7.34M |
|
379
PUT
Atlassian
TEAM
$21.7B
| $34.2M | 0.03% |
116,300
+52,300
| +82% | +$15.6M |
|
380
Invesco QQQ Trust
QQQ
$469B
| $34.1M | 0.03% |
94,196
+82,184
| +684% | +$29.2M |
|
|
SCHW
381
CALL
Charles Schwab
SCHW
$175B
| $34.1M | 0.03% |
404,700
-120,800
| -23% | -$10.6M |
|
382
CALL
Diamondback Energy
FANG
$57.1B
| $34.1M | 0.03% |
248,500
+40,300
| +19% | +$5.24M |
|
383
TSMC
TSM
$2.18T
| $34M | 0.03% |
326,483
-49,984
| -13% | -$5.85M |
|
384
PUT
Dominion Energy
D
$62.5B
| $33.4M | 0.03% |
393,000
+278,900
| +244% | +$22.4M |
|
385
PUT
Abbott
ABT
$175B
| $33.3M | 0.03% |
281,100
-166,700
| -37% | -$20.7M |
|
386
NVIDIA
NVDA
$5.14T
| $33.1M | 0.03% |
1,211,750
+999,130
| +470% | +$25.1M |
|
387
PUT
Philip Morris
PM
$303B
| $32.9M | 0.03% |
350,700
+117,000
| +50% | +$11.7M |
|
388
PUT
Cameco
CCJ
$39.4B
| $32.7M | 0.03% |
1,125,100
+917,500
| +442% | +$21.5M |
|
389
PUT
Danaher
DHR
$127B
| $32.7M | 0.03% |
125,885
-24,703
| -16% | -$6.19M |
|
390
CALL
Northrop Grumman
NOC
$74.6B
| $32.7M | 0.03% |
73,100
+36,100
| +98% | +$14.9M |
|
391
CALL
DoorDash
DASH
$77.4B
| $32.7M | 0.03% |
278,900
+56,500
| +25% | +$6.11M |
|
392
Ford
F
$57.5B
| $32.5M | 0.03% |
1,923,327
+555,353
| +41% | +$10.6M |
|
393
JPMorgan Chase
JPM
$926B
| $32.4M | 0.03% |
+237,704
| New | +$35.1M |
|
394
PUT
Strategy Inc
MSTR
$36.3B
| $32.4M | 0.03% |
666,000
+183,000
| +38% | +$7.92M |
|
395
PUT
TransDigm Group
TDG
$66.8B
| $32.3M | 0.03% |
49,600
+46,300
| +1,403% | +$29.7M |
|
396
PUT
Cintas
CTAS
$80.6B
| $32.2M | 0.03% |
303,200
+230,400
| +316% | +$22.4M |
|
397
PUT
Trump Media & Technology Group
DJT
$2.56B
| $32.2M | 0.03% |
499,800
+272,700
| +120% | +$20.5M |
|
398
PUT
Electronic Arts
EA
$52.4B
| $32.1M | 0.03% |
253,500
-92,800
| -27% | -$12.1M |
|
399
PUT
Novavax
NVAX
$1.3B
| $31.7M | 0.03% |
430,400
-154,600
| -26% | -$13.8M |
|
|
B
400
PUT
Barrick Mining
B
$62.8B
| $31.5M | 0.03% |
1,286,000
-498,500
| -28% | -$10.7M |
|
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.