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 | |
|---|---|---|---|---|---|---|
1301
Skyworks Solutions
SWKS
$9.06B
| $6.15M | ﹤0.01% |
+57,728
| New | +$5.69M |
|
|
NKLA
1302
CALL
DELISTED
Nikola Corporation Common Stock
NKLA
| $6.15M | ﹤0.01% |
750,500
+724,477
| +2,784% | +$12.9M |
|
1303
VF Corp
VFC
$6.68B
| $6.14M | ﹤0.01% |
455,213
+246,731
| +118% | +$3.24M |
|
1304
PUT
US Foods
USFD
$21.4B
| $6.14M | ﹤0.01% |
115,900
+104,900
| +954% | +$5.52M |
|
1305
CALL
BridgeBio Pharma
BBIO
$16.5B
| $6.14M | ﹤0.01% |
242,400
+35,400
| +17% | +$968K |
|
1306
CALL
ProShares UltraShort Health Care
RXD
$3.25M
| $6.13M | ﹤0.01% |
109,800
-393,000
| -78% | -$8.62M |
|
1307
CALL
Equifax
EFX
$20.3B
| $6.11M | ﹤0.01% |
25,200
+6,200
| +33% | +$1.48M |
|
|
P
1308
PUT
Everpure Inc
P
$24.8B
| $6.1M | ﹤0.01% |
95,000
-120,900
| -56% | -$7M |
|
|
HES
1309
PUT
DELISTED
Hess
HES
| $6.09M | ﹤0.01% |
41,300
-84,400
| -67% | -$12.9M |
|
1310
CALL
Tencent Music
TME
$14.5B
| $6.09M | ﹤0.01% |
433,500
-1,900
| -0.4% | -$25.5K |
|
1311
PUT
Sysco
SYY
$39.7B
| $6.09M | ﹤0.01% |
85,300
+57,200
| +204% | +$4.27M |
|
1312
CALL
State Street SPDR Portfolio Europe ETF
SPEU
$712M
| $6.09M | ﹤0.01% |
121,700
+97,500
| +403% | +$4.14M |
|
1313
CALL
Charles River Laboratories
CRL
$10.9B
| $6.07M | ﹤0.01% |
29,400
+20,100
| +216% | +$4.55M |
|
1314
Constellation Brands
STZ
$22.2B
| $6.07M | ﹤0.01% |
+23,607
| New | +$6.07M |
|
1315
CALL
Blackstone Mortgage Trust
BXMT
$2.82B
| $6.06M | ﹤0.01% |
347,800
-132,200
| -28% | -$2.39M |
|
1316
Carvana
CVNA
$43.3B
| $5.96M | ﹤0.01% |
231,440
-70,530
| -23% | -$1.42M |
|
1317
PUT
Elastic
ESTC
$6.1B
| $5.96M | ﹤0.01% |
52,300
-1,200
| -2% | -$126K |
|
1318
CALL
Check Point Software Technologies
CHKP
$13.3B
| $5.96M | ﹤0.01% |
36,100
+10,900
| +43% | +$1.7M |
|
1319
PUT
Guidewire Software
GWRE
$11.5B
| $5.94M | ﹤0.01% |
43,100
+5,300
| +14% | +$638K |
|
1320
PUT
Camtek
CAMT
$6.9B
| $5.94M | ﹤0.01% |
47,400
-10,600
| -18% | -$1.01M |
|
1321
CALL
PVH
PVH
$3.71B
| $5.93M | ﹤0.01% |
56,000
-54,800
| -49% | -$6.2M |
|
1322
Tyson Foods
TSN
$20.2B
| $5.93M | ﹤0.01% |
103,752
-40,300
| -28% | -$2.36M |
|
1323
Carrier Global
CARR
$57.2B
| $5.92M | ﹤0.01% |
93,923
+55,012
| +141% | +$3.38M |
|
|
JWN
1324
PUT
DELISTED
Nordstrom
JWN
| $5.92M | ﹤0.01% |
279,200
-276,900
| -50% | -$5.65M |
|
1325
ConocoPhillips
COP
$147B
| $5.92M | ﹤0.01% |
+51,756
| New | +$6.29M |
|
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.