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 | |
|---|---|---|---|---|---|---|
|
ACR
6351
CALL
ACRES Commercial Realty
ACR
$130M
| $37K | ﹤0.01% |
2,900
-1,300
| -31% | -$17.3K |
|
|
AHT
6352
Ashford Hospitality Trust
AHT
$20.8M
| $37K | ﹤0.01% |
3,888
+1,398
| +56% | +$16.8K |
|
6353
CoinShares ETF Trust CoinShares Bitcoin and Ether ETF
BTF
$13.8M
| $37K | ﹤0.01% |
+405
| New | +$39.5K |
|
6354
PUT
Ceco Environmental
CECO
$3.49B
| $37K | ﹤0.01% |
1,300
+700
| +117% | +$17K |
|
6355
ClearPoint Neuro
CLPT
$424M
| $37K | ﹤0.01% |
6,897
+6,053
| +717% | +$35K |
|
6356
PUT
Cardiff Oncology
CRDF
$63M
| $37K | ﹤0.01% |
17,100
+5,900
| +53% | +$22.2K |
|
|
ELME
6357
Elme Communities
ELME
$145M
| $37K | ﹤0.01% |
+2,370
| New | +$36.1K |
|
6358
PUT
Evolus
EOLS
$397M
| $37K | ﹤0.01% |
3,500
+1,900
| +119% | +$23.4K |
|
6359
PUT
Golub Capital BDC
GBDC
$3.33B
| $37K | ﹤0.01% |
2,400
+2,000
| +500% | +$32.8K |
|
6360
CALL
Garrett Motion
GTX
$5.37B
| $37K | ﹤0.01% |
4,400
-294,000
| -99% | -$2.72M |
|
6361
CALL
Heritage Financial
HFWA
$1.22B
| $37K | ﹤0.01% |
+2,100
| New | +$37.7K |
|
|
HPP
6362
CALL
Hudson Pacific Properties
HPP
$758M
| $37K | ﹤0.01% |
1,129
-257
| -19% | -$9.7K |
|
6363
CALL
Fusion Fuel Green
HTOO
$8.51M
| $37K | ﹤0.01% |
1,220
+671
| +122% | +$28.6K |
|
6364
PUT
Hexcel
HXL
$7.97B
| $37K | ﹤0.01% |
600
-500
| -45% | -$33.5K |
|
6365
Disc Medicine
IRON
$2.81B
| $37K | ﹤0.01% |
+832
| New | +$28.3K |
|
6366
PUT
Mercury Insurance
MCY
$6B
| $37K | ﹤0.01% |
+700
| New | +$37.9K |
|
6367
CALL
First Trust Exchange-Traded Fund VI Multi-Asset Diversified Income Index Fund
MDIV
$431M
| $37K | ﹤0.01% |
600
+300
| +100% | +$4.71K |
|
6368
CALL
Mistras Group
MG
$477M
| $37K | ﹤0.01% |
4,500
+2,600
| +137% | +$22.7K |
|
6369
CALL
Mueller Water Products
MWA
$3.94B
| $37K | ﹤0.01% |
2,100
+1,000
| +91% | +$17.2K |
|
6370
PUT
NetSol Technologies
NTWK
$52.1M
| $37K | ﹤0.01% |
14,900
+11,200
| +303% | +$29.6K |
|
6371
CALL
Enviri
NVRI
$624M
| $37K | ﹤0.01% |
4,300
+4,100
| +2,050% | +$34.2K |
|
|
PKST
6372
PUT
DELISTED
Peakstone Realty Trust
PKST
| $37K | ﹤0.01% |
3,500
+1,500
| +75% | +$19.7K |
|
6373
CALL
Sabesp
SBS
$18.4B
| $37K | ﹤0.01% |
14,438
-52,597
| -78% | -$154K |
|
6374
PUT
Viridian Therapeutics
VRDN
$2.2B
| $37K | ﹤0.01% |
2,900
+1,200
| +71% | +$16.6K |
|
6375
CALL
York Water
YORW
$511M
| $37K | ﹤0.01% |
1,000
+900
| +900% | +$32.6K |
|
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.