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 |
Amazon
AMZN
|
+$168M |
| 2 |
NVIDIA
NVDA
|
+$141M |
| 3 |
TSMC
TSM
|
+$121M |
| 4 |
Meta Platforms (Facebook)
META
|
+$107M |
| 5 |
SPDR Gold Trust
GLD
|
+$103M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Apple
AAPL
|
+$174M |
| 2 |
Western Digital
WDC
|
+$87.7M |
| 3 |
Broadcom
AVGO
|
+$62.2M |
| 4 |
Direxion Daily Semiconductor Bull 3X ETF
SOXL
|
+$52M |
| 5 |
Netflix
NFLX
|
+$44.6M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 0.62% |
| 2 | Communication Services | 0.22% |
| 3 | Consumer Discretionary | 0.21% |
| 4 | Healthcare | 0.2% |
| 5 | Industrials | 0.1% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Change in Stake | Capital Flow | |
|---|---|---|---|---|---|---|
1726
PUT
Archer Daniels Midland
ADM
$41.4B
| $2.26M | ﹤0.01% |
31,100
-146,400
| -82% | -$9.89M |
|
1727
PUT
Kenvue
KVUE
$37B
| $2.26M | ﹤0.01% |
131,100
-1,978,500
| -94% | -$35.2M |
|
1728
CALL
Beyond Meat
BYND
$288M
| $2.26M | ﹤0.01% |
3,213,900
-2,621,400
| -45% | -$2.1M |
|
1729
PUT
Conagra Brands
CAG
$7.07B
| $2.24M | ﹤0.01% |
142,700
-369,900
| -72% | -$6.53M |
|
1730
PUT
Jackson Financial
JXN
$8.32B
| $2.24M | ﹤0.01% |
21,200
+6,600
| +45% | +$738K |
|
1731
CALL
Triple Flag Precious Metals
TFPM
$6B
| $2.24M | ﹤0.01% |
64,500
+30,100
| +88% | +$1.09M |
|
1732
PUT
Novavax
NVAX
$1.23B
| $2.24M | ﹤0.01% |
275,000
-67,200
| -20% | -$609K |
|
1733
PUT
Canadian Solar
CSIQ
$906M
| $2.24M | ﹤0.01% |
161,600
-38,200
| -19% | -$727K |
|
1734
Franco-Nevada
FNV
$41.4B
| $2.24M | ﹤0.01% |
9,054
+3,168
| +54% | +$784K |
|
1735
CALL
Mobileye
MBLY
$2.03B
| $2.23M | ﹤0.01% |
323,900
-150,700
| -32% | -$1.37M |
|
1736
PUT
Concentrix
CNXC
$1.36B
| $2.22M | ﹤0.01% |
81,300
+10,800
| +15% | +$383K |
|
1737
CALL
PagSeguro Digital
PAGS
$2.57B
| $2.22M | ﹤0.01% |
221,700
+3,400
| +2% | +$35.5K |
|
1738
CALL
Sprouts Farmers Market
SFM
$7.04B
| $2.22M | ﹤0.01% |
28,800
-27,000
| -48% | -$2.02M |
|
1739
CALL
BCE
BCE
$19.9B
| $2.22M | ﹤0.01% |
88,000
-236,000
| -73% | -$5.98M |
|
1740
PUT
Jefferies Financial Group
JEF
$12.9B
| $2.22M | ﹤0.01% |
53,800
+29,200
| +119% | +$1.52M |
|
1741
PUT
Canadian Imperial Bank of Commerce
CM
$107B
| $2.22M | ﹤0.01% |
+23,400
| New | +$2.24M |
|
1742
CALL
Travelers Companies
TRV
$80.8B
| $2.22M | ﹤0.01% |
7,600
-1,100
| -13% | -$322K |
|
1743
PUT
Builders FirstSource
BLDR
$7.84B
| $2.21M | ﹤0.01% |
26,900
-13,500
| -33% | -$1.44M |
|
1744
PUT
Performance Food Group
PFGC
$17.5B
| $2.21M | ﹤0.01% |
25,800
+18,600
| +258% | +$1.7M |
|
1745
Hecla Mining
HL
$10.2B
| $2.21M | ﹤0.01% |
+118,499
| New | +$2.67M |
|
1746
PUT
Elbit Systems
ESLT
$38.4B
| $2.21M | ﹤0.01% |
2,600
+2,500
| +2,500% | +$1.93M |
|
1747
CALL
Warby Parker
WRBY
$3.01B
| $2.21M | ﹤0.01% |
104,700
+45,200
| +76% | +$1.12M |
|
1748
CALL
Blackstone Mortgage Trust
BXMT
$2.82B
| $2.2M | ﹤0.01% |
115,000
+29,500
| +35% | +$569K |
|
1749
PUT
Madrigal Pharmaceuticals
MDGL
$12.6B
| $2.2M | ﹤0.01% |
+4,200
| New | +$2.01M |
|
|
QXO
1750
QXO Inc
QXO
$14.2B
| $2.2M | ﹤0.01% |
113,183
+70,615
| +166% | +$1.62M |
|
Similar funds
Simplex Trading's Q1 2026 Portfolio in Review
As of Q1 2026, Simplex Trading held 10,500 positions worth $149B, down 16% from $177B the previous quarter. Its ten largest holdings account for 51% of the portfolio.
Simplex Trading withdrew a net $18.1B in Q1 2026, closing 1,574 positions and reducing 3,926 holdings. Its most notable exit was Direxion Daily Semiconductor Bull 3X ETF, an estimated $52M position sold in full.
By sector, the portfolio is most concentrated in Technology at 0.62% of assets, up from 0.59% a quarter earlier, followed by Communication Services and Consumer Discretionary.
Against the trend, Simplex Trading opened a new position in Amazon worth $159M.
- Simplex Trading's largest Q1 2026 buy was Amazon: 764,884 shares worth $159M.
- Simplex Trading added most to NVIDIA in Q1 2026, an estimated $141M increase.
- Simplex Trading's biggest Q1 2026 reduction was Apple, cutting an estimated $174M.
- Simplex Trading fully exited Direxion Daily Semiconductor Bull 3X ETF in Q1 2026, selling an estimated $52M.
- Simplex Trading's ten largest holdings make up 51% of its $149B portfolio in Q1 2026.
- Simplex Trading opened 2,156 new positions and closed 1,574 in Q1 2026.
- Simplex Trading's portfolio value fell 16% quarter-over-quarter to $149B.
Based on Simplex Trading's 13F filing for Q1 2026, filed 14 May 2026.