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 | |
|---|---|---|---|---|---|---|
1326
CALL
NOV
NOV
$7.42B
| $4.55M | ﹤0.01% |
232,100
+138,700
| +149% | +$2.43M |
|
1327
CALL
CRISPR Therapeutics
CRSP
$4.6B
| $4.55M | ﹤0.01% |
72,500
-97,700
| -57% | -$6.13M |
|
1328
PUT
Stellantis
STLA
$16.4B
| $4.55M | ﹤0.01% |
279,600
+27,200
| +11% | +$497K |
|
1329
CALL
Zions Bancorporation
ZION
$10.1B
| $4.55M | ﹤0.01% |
69,400
+52,400
| +308% | +$3.58M |
|
|
GTM
1330
CALL
ZoomInfo Technologies
GTM
$861M
| $4.54M | ﹤0.01% |
76,000
+51,800
| +214% | +$2.78M |
|
1331
PUT
Doximity
DOCS
$3.7B
| $4.53M | ﹤0.01% |
87,000
-68,300
| -44% | -$3.44M |
|
1332
CALL
Rocket Companies
RKT
$36.5B
| $4.53M | ﹤0.01% |
407,200
+145,200
| +55% | +$1.8M |
|
1333
Peloton Interactive
PTON
$2.61B
| $4.53M | ﹤0.01% |
171,281
-64,200
| -27% | -$1.84M |
|
1334
CALL
FTAI Aviation
FTAI
$22.2B
| $4.52M | ﹤0.01% |
205,628
+74,710
| +57% | +$1.66M |
|
1335
PUT
DigitalOcean
DOCN
$14.6B
| $4.52M | ﹤0.01% |
78,100
+26,500
| +51% | +$1.55M |
|
1336
CALL
Franco-Nevada
FNV
$41.3B
| $4.51M | ﹤0.01% |
28,300
-21,200
| -43% | -$3.05M |
|
1337
CALL
Hartford Financial Services
HIG
$38.4B
| $4.51M | ﹤0.01% |
62,800
+17,200
| +38% | +$1.21M |
|
1338
PUT
FIVE9
FIVN
$1.76B
| $4.5M | ﹤0.01% |
40,800
+8,500
| +26% | +$989K |
|
|
SPR
1339
CALL
DELISTED
Spirit AeroSystems
SPR
| $4.5M | ﹤0.01% |
92,100
-68,500
| -43% | -$3.2M |
|
1340
CALL
McKesson
MCK
$98.3B
| $4.5M | ﹤0.01% |
14,700
+1,800
| +14% | +$490K |
|
1341
PUT
Viatris
VTRS
$20B
| $4.49M | ﹤0.01% |
413,000
+244,400
| +145% | +$3.22M |
|
|
1342
CALL
Doximity
DOCS
$3.7B
| $4.48M | ﹤0.01% |
86,100
+100
| +0.1% | +$5.03K |
|
1343
PUT
Chegg
CHGG
$109M
| $4.47M | ﹤0.01% |
123,300
-2,300
| -2% | -$69.2K |
|
1344
CALL
Welltower
WELL
$176B
| $4.47M | ﹤0.01% |
46,500
+15,300
| +49% | +$1.33M |
|
1345
PUT
First Majestic Silver
AG
$8.13B
| $4.47M | ﹤0.01% |
339,400
-95,300
| -22% | -$1.12M |
|
1346
PUT
Invesco DB Base Metals Fund
DBB
$308M
| $4.46M | ﹤0.01% |
201,700
+188,000
| +1,372% | +$4.53M |
|
|
LAZR
1347
PUT
DELISTED
Luminar Technologies
LAZR
| $4.45M | ﹤0.01% |
18,993
+3,600
| +23% | +$789K |
|
1348
CALL
Entegris
ENTG
$19.9B
| $4.45M | ﹤0.01% |
33,900
+31,600
| +1,374% | +$4.06M |
|
1349
CALL
KeyCorp
KEY
$24.4B
| $4.43M | ﹤0.01% |
198,100
+39,200
| +25% | +$975K |
|
1350
CALL
Xerox
XRX
$335M
| $4.43M | ﹤0.01% |
219,800
+177,100
| +415% | +$3.72M |
|
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.