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 | |
|---|---|---|---|---|---|---|
2176
PUT
FT Vest Gold Strategy Target Income ETF
IGLD
$507M
| $2.05M | ﹤0.01% |
10,200
+9,300
| +1,033% | +$187K |
|
2177
PUT
ArcelorMittal
MT
$50.4B
| $2.05M | ﹤0.01% |
89,600
-25,500
| -22% | -$652K |
|
2178
Tilray
TLRY
$479M
| $2.05M | ﹤0.01% |
123,789
+105,394
| +573% | +$2.02M |
|
2179
CALL
Atlas Energy Solutions
AESI
$1.49B
| $2.05M | ﹤0.01% |
103,000
+64,600
| +168% | +$1.44M |
|
|
MAXN
2180
PUT
DELISTED
Maxeon Solar Technologies
MAXN
| $2.05M | ﹤0.01% |
24,041
+20,954
| +679% | +$4.44M |
|
2181
PUT
Nabors Industries
NBR
$1.23B
| $2.05M | ﹤0.01% |
28,800
-5,200
| -15% | -$388K |
|
|
APLS
2182
PUT
DELISTED
Apellis Pharmaceuticals
APLS
| $2.05M | ﹤0.01% |
53,400
-15,300
| -22% | -$693K |
|
2183
AdvisorShares Pure US Cannabis ETF
MSOS
$864M
| $2.05M | ﹤0.01% |
279,361
-397,641
| -59% | -$3.47M |
|
2184
CALL
Brookfield
BN
$102B
| $2.04M | ﹤0.01% |
73,800
-56,700
| -43% | -$1.58M |
|
2185
CALL
Incyte
INCY
$23.5B
| $2.04M | ﹤0.01% |
33,700
-28,500
| -46% | -$1.61M |
|
2186
PUT
Primoris Services
PRIM
$4.69B
| $2.04M | ﹤0.01% |
+40,900
| New | +$2.02M |
|
2187
CALL
Vipshop
VIPS
$6.84B
| $2.04M | ﹤0.01% |
156,600
+4,700
| +3% | +$74.7K |
|
2188
Calumet Specialty Products
CLMT
$3.63B
| $2.04M | ﹤0.01% |
126,938
+104,948
| +477% | +$1.66M |
|
2189
CALL
Commercial Metals
CMC
$7.63B
| $2.03M | ﹤0.01% |
36,900
-22,300
| -38% | -$1.23M |
|
2190
CALL
New Fortress Energy
NFE
$101M
| $2.03M | ﹤0.01% |
92,300
+83,800
| +986% | +$2.17M |
|
2191
CALL
MarketAxess Holdings
MKTX
$4.15B
| $2.02M | ﹤0.01% |
10,100
+2,200
| +28% | +$454K |
|
2192
InMode
INMD
$872M
| $2.02M | ﹤0.01% |
110,836
-24,587
| -18% | -$452K |
|
2193
PUT
Tencent Music
TME
$14.5B
| $2.02M | ﹤0.01% |
143,600
+70,600
| +97% | +$948K |
|
2194
PUT
ScottsMiracle-Gro
SMG
$4.03B
| $2.02M | ﹤0.01% |
31,000
-10,600
| -25% | -$725K |
|
2195
Boston Scientific
BSX
$65.8B
| $2.01M | ﹤0.01% |
26,154
+22,371
| +591% | +$1.64M |
|
2196
PUT
Green Plains
GPRE
$1.19B
| $2.01M | ﹤0.01% |
127,000
-21,300
| -14% | -$410K |
|
|
TIGR
2197
UP Fintech Holding
TIGR
$845M
| $2.01M | ﹤0.01% |
478,546
+147,549
| +45% | +$582K |
|
2198
PUT
Bank of Hawaii
BOH
$3.33B
| $2.01M | ﹤0.01% |
35,100
+11,600
| +49% | +$673K |
|
2199
CALL
Marriott Vacations Worldwide
VAC
$3.24B
| $2.01M | ﹤0.01% |
23,000
-29,800
| -56% | -$2.83M |
|
2200
Lincoln National
LNC
$7.91B
| $2.01M | ﹤0.01% |
64,559
+8,372
| +15% | +$253K |
|
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.