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 | |
|---|---|---|---|---|---|---|
6851
Kenon Holdings
KEN
$3.33B
| $21K | ﹤0.01% |
864
+497
| +135% | +$11.8K |
|
6852
LiveWire
LVWR
$530M
| $21K | ﹤0.01% |
+2,860
| New | +$20K |
|
|
OGI
6853
Organigram Holdings
OGI
$131M
| $21K | ﹤0.01% |
13,775
-25,276
| -65% | -$45.9K |
|
6854
OPAL Fuels
OPAL
$62.5M
| $21K | ﹤0.01% |
5,154
+1,482
| +40% | +$6.96K |
|
6855
Quest Resource Holding
QRHC
$27.6M
| $21K | ﹤0.01% |
+2,426
| New | +$22.4K |
|
6856
CALL
Alpha Architect US Quantitative Value ETF
QVAL
$590M
| $21K | ﹤0.01% |
800
+400
| +100% | +$17.5K |
|
6857
PUT
Rayonier Advanced Materials
RYAM
$562M
| $21K | ﹤0.01% |
4,000
-26,900
| -87% | -$131K |
|
6858
PUT
Steven Madden
SHOO
$3.17B
| $21K | ﹤0.01% |
500
-2,900
| -85% | -$121K |
|
6859
CALL
Towne Bank
TOWN
$3.54B
| $21K | ﹤0.01% |
800
-1,800
| -69% | -$48.4K |
|
6860
PUT
Telesat
TSAT
$524M
| $21K | ﹤0.01% |
2,400
+1,000
| +71% | +$8.13K |
|
|
VBTX
6861
CALL
DELISTED
Veritex Holdings
VBTX
| $21K | ﹤0.01% |
1,000
-3,000
| -75% | -$60.7K |
|
6862
CALL
Visteon
VC
$2.85B
| $21K | ﹤0.01% |
200
-100
| -33% | -$11K |
|
6863
Verastem
VSTM
$528M
| $21K | ﹤0.01% |
7,050
+6,761
| +2,339% | +$55.7K |
|
6864
CALL
Werner Enterprises
WERN
$2.2B
| $21K | ﹤0.01% |
600
+200
| +50% | +$7.31K |
|
6865
CALL
Cactus
WHD
$3.63B
| $21K | ﹤0.01% |
400
+100
| +33% | +$5.09K |
|
6866
CALL
Beyond Air
XAIR
$3.97M
| $21K | ﹤0.01% |
99
+95
| +2,375% | +$47.3K |
|
|
SMC
6867
Summit Midstream
SMC
$420M
| $21K | ﹤0.01% |
601
-3,771
| -86% | -$119K |
|
|
EDR
6868
PUT
DELISTED
Endeavor Group Holdings, Inc.
EDR
| $21K | ﹤0.01% |
800
-287,300
| -100% | -$7.64M |
|
|
ETRN
6869
PUT
DELISTED
Equitrans Midstream Corporation Common Stock
ETRN
| $21K | ﹤0.01% |
146,200
-8,400
| -5% | -$113K |
|
6870
PUT
Abeona Therapeutics
ABEO
$355M
| $20K | ﹤0.01% |
4,900
+1,600
| +48% | +$8.16K |
|
6871
Bionano Genomics
BNGO
$12.5M
| $20K | ﹤0.01% |
492
+265
| +117% | +$14.6K |
|
6872
Compañía de Minas Buenaventura
BVN
$7.68B
| $20K | ﹤0.01% |
1,228
-906
| -42% | -$15.3K |
|
6873
CALL
CBAK Energy Technology Ltd
CBAT
$43.1M
| $20K | ﹤0.01% |
+14,600
| New | +$18.3K |
|
6874
Cellectar Biosciences
CLRB
$19.8M
| $20K | ﹤0.01% |
273
+150
| +122% | +$14.4K |
|
6875
PUT
Dynagas LNG Partners
DLNG
$130M
| $20K | ﹤0.01% |
+5,100
| New | +$18.8K |
|
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.