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 |
NVIDIA
NVDA
|
+$93M |
| 2 |
Citigroup
C
|
+$74.8M |
| 3 |
Pinduoduo
PDD
|
+$50.7M |
| 4 |
Intel
INTC
|
+$47.1M |
| 5 |
Broadcom
AVGO
|
+$46.2M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
State Street Energy Select Sector SPDR ETF
XLE
|
+$94.5M |
| 2 |
Pfizer
PFE
|
+$66.4M |
| 3 |
Boeing
BA
|
+$61.6M |
| 4 |
PayPal
PYPL
|
+$42.2M |
| 5 |
GE Aerospace
GE
|
+$42M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.53% |
| 2 | Consumer Discretionary | 0.29% |
| 3 | Healthcare | 0.21% |
| 4 | Financials | 0.2% |
| 5 | Materials | 0.12% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
3776
CALL
Annovis Bio
ANVS
$71.9M
| $451K | ﹤0.01% |
78,400
-83,200
| -51% | -$674K |
|
3777
PUT
Vita Coco
COCO
$3.97B
| $451K | ﹤0.01% |
16,200
+800
| +5% | +$21.2K |
|
3778
PUT
Buckle
BKE
$2.35B
| $450K | ﹤0.01% |
12,200
-9,300
| -43% | -$348K |
|
3779
CALL
Genworth Financial
GNW
$3.85B
| $450K | ﹤0.01% |
74,600
-1,900
| -2% | -$11.8K |
|
3780
CALL
Graphic Packaging
GPK
$3.45B
| $450K | ﹤0.01% |
17,200
-3,500
| -17% | -$96.7K |
|
3781
CALL
Algonquin Power & Utilities
AQN
$4.68B
| $449K | ﹤0.01% |
76,700
+71,800
| +1,465% | +$445K |
|
3782
CALL
Performance Food Group
PFGC
$18.1B
| $449K | ﹤0.01% |
6,800
-24,600
| -78% | -$1.71M |
|
3783
Bitdeer Technologies
BTDR
$2.5B
| $448K | ﹤0.01% |
43,738
+22,157
| +103% | +$152K |
|
3784
PUT
Energy Fuels
UUUU
$2.83B
| $448K | ﹤0.01% |
74,000
-10,300
| -12% | -$62.9K |
|
3785
Frontline
FRO
$8.63B
| $447K | ﹤0.01% |
17,379
+15,777
| +985% | +$402K |
|
3786
PUT
BWX Technologies
BWXT
$15.5B
| $446K | ﹤0.01% |
4,700
-200
| -4% | -$18.5K |
|
3787
PUT
Ferguson
FERG
$45B
| $445K | ﹤0.01% |
2,300
-5,800
| -72% | -$1.22M |
|
|
LTC
3788
CALL
LTC Properties
LTC
$2.14B
| $445K | ﹤0.01% |
12,900
+5,000
| +63% | +$167K |
|
3789
CALL
Ryan Specialty Holdings
RYAN
$5.96B
| $445K | ﹤0.01% |
7,700
-200
| -3% | -$10.7K |
|
3790
AppFolio
APPF
$6.31B
| $444K | ﹤0.01% |
1,817
+924
| +103% | +$215K |
|
3791
BlackBerry
BB
$4.74B
| $444K | ﹤0.01% |
179,224
+114,218
| +176% | +$318K |
|
3792
Bausch + Lomb
BLCO
$5.92B
| $444K | ﹤0.01% |
30,593
+6,473
| +27% | +$97.2K |
|
3793
PUT
Cogent Biosciences
COGT
$6.95B
| $444K | ﹤0.01% |
52,700
+22,400
| +74% | +$170K |
|
3794
CALL
Acushnet Holdings
GOLF
$6.05B
| $444K | ﹤0.01% |
7,000
+3,800
| +119% | +$242K |
|
|
LSEA
3795
CALL
DELISTED
Landsea Homes
LSEA
| $444K | ﹤0.01% |
48,400
+13,600
| +39% | +$144K |
|
|
AGNT
3796
CALL
AGNT Inc
AGNT
$661M
| $443K | ﹤0.01% |
39,300
+15,100
| +62% | +$165K |
|
3797
PUT
Pinnacle West Capital
PNW
$12.8B
| $443K | ﹤0.01% |
5,800
-34,300
| -86% | -$2.59M |
|
3798
PUT
Veeco
VECO
$2.79B
| $443K | ﹤0.01% |
9,500
-5,800
| -38% | -$229K |
|
3799
CALL
Archrock
AROC
$6.19B
| $442K | ﹤0.01% |
21,900
-2,500
| -10% | -$49.6K |
|
3800
CALL
Westlake Chemical Partners
WLKP
$776M
| $442K | ﹤0.01% |
19,600
+15,500
| +378% | +$345K |
|
Similar funds
Simplex Trading's Q2 2024 Portfolio in Review
As of Q2 2024, Simplex Trading held 10,213 positions worth $162B, down 6.5% from $173B the previous quarter. Its ten largest holdings account for 50% of the portfolio.
Simplex Trading withdrew a net $19.2B in Q2 2024, closing 1,431 positions and reducing 4,061 holdings. Its most notable exit was Boeing, an estimated $61.6M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.53% of assets, up from 0.38% a quarter earlier, followed by Consumer Discretionary and Healthcare.
Against the trend, Simplex Trading opened a new position in Citigroup worth $77M.
- Simplex Trading's largest Q2 2024 buy was Citigroup: 1,213,247 shares worth $77M.
- Simplex Trading added most to NVIDIA in Q2 2024, an estimated $93M increase.
- Simplex Trading's biggest Q2 2024 reduction was State Street Energy Select Sector SPDR ETF, cutting an estimated $94.5M.
- Simplex Trading fully exited Boeing in Q2 2024, selling an estimated $61.6M.
- Simplex Trading's ten largest holdings make up 50% of its $162B portfolio in Q2 2024.
- Simplex Trading opened 1,358 new positions and closed 1,431 in Q2 2024.
- Simplex Trading's portfolio value fell 6.5% quarter-over-quarter to $162B.
Based on Simplex Trading's 13F filing for Q2 2024, filed 25 Jul 2024.