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 |
NVIDIA
NVDA
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1451
FreightCar America
RAIL
$162M
| $38K | ﹤0.01% |
10,889
-3,788
| -26% | -$13.2K |
|
|
AHT
1452
Ashford Hospitality Trust
AHT
$38.1M
| $37K | ﹤0.01% |
3,888
+1,398
| +56% | +$13.3K |
|
1453
Valkyrie ETF Trust II CoinShares Bitcoin and Ether ETF
BTF
$43.9M
| $37K | ﹤0.01% |
+2,026
| New | +$37K |
|
1454
ClearPoint Neuro
CLPT
$298M
| $37K | ﹤0.01% |
6,897
+6,053
| +717% | +$32.5K |
|
|
ELME
1455
Elme Communities
ELME
$1.51B
| $37K | ﹤0.01% |
+2,370
| New | +$37K |
|
1456
Disc Medicine
IRON
$2.08B
| $37K | ﹤0.01% |
+832
| New | +$37K |
|
1457
Amer Sports
AS
$20.2B
| $37K | ﹤0.01% |
+2,972
| New | +$37K |
|
1458
Global Net Lease
GNL
$1.81B
| $36K | ﹤0.01% |
4,964
-634
| -11% | -$4.6K |
|
1459
Harmonic Inc
HLIT
$1.13B
| $36K | ﹤0.01% |
3,119
-36,543
| -92% | -$422K |
|
|
LOMA
1460
Loma Negra
LOMA
$888M
| $36K | ﹤0.01% |
5,461
+291
| +6% | +$1.92K |
|
1461
Pricesmart
PSMT
$3.52B
| $36K | ﹤0.01% |
+451
| New | +$36K |
|
1462
Teledyne Technologies
TDY
$26.1B
| $36K | ﹤0.01% |
+94
| New | +$36K |
|
1463
WPP
WPP
$5.86B
| $36K | ﹤0.01% |
+795
| New | +$36K |
|
|
WKME
1464
DELISTED
WalkMe Ltd. Ordinary Shares
WKME
| $36K | ﹤0.01% |
2,639
+269
| +11% | +$3.67K |
|
1465
Fulgent Genetics
FLGT
$670M
| $35K | ﹤0.01% |
1,800
-2,446
| -58% | -$47.6K |
|
1466
Lyra Therapeutics
LYRA
$10.3M
| $35K | ﹤0.01% |
+2,583
| New | +$35K |
|
1467
Potbelly
PBPB
$514M
| $35K | ﹤0.01% |
+4,366
| New | +$35K |
|
1468
The ONE Group
STKS
$81.1M
| $35K | ﹤0.01% |
8,340
-13,035
| -61% | -$54.7K |
|
1469
Trip.com Group
TCOM
$48.3B
| $35K | ﹤0.01% |
+745
| New | +$35K |
|
1470
Vanguard Small-Cap Growth ETF
VBK
$20.5B
| $35K | ﹤0.01% |
140
-463
| -77% | -$116K |
|
1471
Athira Pharma
ATHA
$14.2M
| $34K | ﹤0.01% |
13,010
-5,315
| -29% | -$13.9K |
|
1472
Expensify
EXFY
$178M
| $34K | ﹤0.01% |
23,410
+475
| +2% | +$690 |
|
1473
Heidrick & Struggles
HSII
$1.03B
| $34K | ﹤0.01% |
1,089
+989
| +989% | +$30.9K |
|
1474
LoveSac
LOVE
$258M
| $34K | ﹤0.01% |
+1,524
| New | +$34K |
|
1475
Direxion Daily NVDA Bear 1X Shares
NVDD
$32.7M
| $34K | ﹤0.01% |
4,416
+4,261
| +2,749% | +$32.8K |
|