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
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1426
Invesco Aerospace & Defense ETF
PPA
$6.41B
| $46K | ﹤0.01% |
+457
| New | +$46K |
|
1427
Interface
TILE
$1.74B
| $46K | ﹤0.01% |
2,776
-779
| -22% | -$12.9K |
|
1428
Tourmaline Bio
TRML
$1.23B
| $46K | ﹤0.01% |
+2,018
| New | +$46K |
|
1429
Compugen
CGEN
$125M
| $45K | ﹤0.01% |
17,697
+6,280
| +55% | +$16K |
|
1430
Day One Biopharmaceuticals
DAWN
$739M
| $45K | ﹤0.01% |
+2,758
| New | +$45K |
|
1431
Fulton Financial
FULT
$3.55B
| $45K | ﹤0.01% |
2,892
+963
| +50% | +$15K |
|
1432
Vontier
VNT
$6.38B
| $45K | ﹤0.01% |
1,002
-4,881
| -83% | -$219K |
|
1433
AudioCodes
AUDC
$291M
| $44K | ﹤0.01% |
3,396
-796
| -19% | -$10.3K |
|
1434
Avantis US Equity ETF
AVUS
$9.72B
| $44K | ﹤0.01% |
+500
| New | +$44K |
|
1435
Hanmi Financial
HAFC
$771M
| $44K | ﹤0.01% |
2,800
+766
| +38% | +$12K |
|
1436
Amplify Alternative Harvest ETF
MJ
$182M
| $44K | ﹤0.01% |
896
-6,489
| -88% | -$319K |
|
1437
Ultragenyx Pharmaceutical
RARE
$2.81B
| $44K | ﹤0.01% |
+954
| New | +$44K |
|
1438
SkyWater Technology
SKYT
$651M
| $44K | ﹤0.01% |
4,413
-8,335
| -65% | -$83.1K |
|
1439
Schwab US Large-Cap Growth ETF
SCHG
$50.1B
| $43K | ﹤0.01% |
+1,876
| New | +$43K |
|
1440
Safety Shot
SHOT
$68.2M
| $43K | ﹤0.01% |
+18,200
| New | +$43K |
|
1441
Altice USA
ATUS
$1.27B
| $43K | ﹤0.01% |
16,691
-64,155
| -79% | -$165K |
|
1442
Clarivate
CLVT
$2.76B
| $43K | ﹤0.01% |
5,854
-4,145
| -41% | -$30.4K |
|
1443
Global Net Lease
GNL
$1.8B
| $43K | ﹤0.01% |
5,598
+2,769
| +98% | +$21.3K |
|
|
NEXN
1444
Nexxen International
NEXN
$594M
| $43K | ﹤0.01% |
8,268
+5,723
| +225% | +$29.8K |
|
1445
Oppenheimer Holdings
OPY
$840M
| $43K | ﹤0.01% |
+1,089
| New | +$43K |
|
|
AMK
1446
DELISTED
AssetMark Financial Holdings, Inc.
AMK
| $42K | ﹤0.01% |
+1,209
| New | +$42K |
|
1447
Energy Recovery
ERII
$805M
| $42K | ﹤0.01% |
2,684
+2,295
| +590% | +$35.9K |
|
1448
Expensify
EXFY
$184M
| $42K | ﹤0.01% |
+22,935
| New | +$42K |
|
1449
NBT Bancorp
NBTB
$2.32B
| $42K | ﹤0.01% |
+1,154
| New | +$42K |
|
1450
Precigen
PGEN
$1.13B
| $42K | ﹤0.01% |
29,207
+10,207
| +54% | +$14.7K |
|