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 |
Apple
AAPL
|
+$45.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 4 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$33.2M |
| 5 |
Citigroup
C
|
+$32.7M |
Top Sells
| 1 |
Amazon
AMZN
|
+$164M |
| 2 |
Invesco QQQ Trust
QQQ
|
+$111M |
| 3 |
NVIDIA
NVDA
|
+$77.7M |
| 4 |
Meta Platforms (Facebook)
META
|
+$60.9M |
| 5 |
Procter & Gamble
PG
|
+$38.8M |
Sector Composition
| 1 | Technology | 21.73% |
| 2 | Consumer Discretionary | 10.23% |
| 3 | Healthcare | 8.76% |
| 4 | Industrials | 7.59% |
| 5 | Communication Services | 6.56% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1451
Lennox International
LII
$19.1B
| $26K | ﹤0.01% |
+104
| New | +$26K |
|
1452
National Fuel Gas
NFG
$7.97B
| $26K | ﹤0.01% |
458
+294
| +179% | +$16.7K |
|
1453
PROS Holdings
PRO
$699M
| $26K | ﹤0.01% |
+966
| New | +$26K |
|
1454
Vicarious Surgical
RBOT
$34.6M
| $26K | ﹤0.01% |
+394
| New | +$26K |
|
1455
Ryanair
RYAAY
$31.1B
| $26K | ﹤0.01% |
703
-6,387
| -90% | -$236K |
|
1456
WisdomTree Bloomberg US Dollar Bullish Fund
USDU
$151M
| $26K | ﹤0.01% |
1,000
+918
| +1,120% | +$23.9K |
|
1457
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$34M
| $26K | ﹤0.01% |
294
-317
| -52% | -$28K |
|
1458
Westamerica Bancorp
WABC
$1.24B
| $26K | ﹤0.01% |
+592
| New | +$26K |
|
|
FRC
1459
DELISTED
First Republic Bank
FRC
| $26K | ﹤0.01% |
1,900
-16,863
| -90% | -$231K |
|
|
BZUN
1460
Baozun
BZUN
$276M
| $25K | ﹤0.01% |
4,292
-8,233
| -66% | -$48K |
|
1461
Conduent
CNDT
$445M
| $25K | ﹤0.01% |
+7,422
| New | +$25K |
|
1462
iShares GSCI Commodity Dynamic Roll Strategy ETF
COMT
$653M
| $25K | ﹤0.01% |
929
+418
| +82% | +$11.2K |
|
1463
Castor Maritime
CTRM
$19.2M
| $25K | ﹤0.01% |
3,202
-1,059
| -25% | -$8.27K |
|
1464
Diana Shipping
DSX
$225M
| $25K | ﹤0.01% |
+8,235
| New | +$25K |
|
1465
Hain Celestial
HAIN
$194M
| $25K | ﹤0.01% |
+1,497
| New | +$25K |
|
1466
MYR Group
MYRG
$2.73B
| $25K | ﹤0.01% |
+205
| New | +$25K |
|
1467
nCino
NCNO
$3.48B
| $25K | ﹤0.01% |
+1,017
| New | +$25K |
|
1468
Patria Investments
PAX
$2.31B
| $25K | ﹤0.01% |
+1,747
| New | +$25K |
|
1469
Avita Medical
RCEL
$123M
| $25K | ﹤0.01% |
1,845
-9,668
| -84% | -$131K |
|
1470
Ryerson Holding
RYI
$723M
| $25K | ﹤0.01% |
697
+653
| +1,484% | +$23.4K |
|
1471
Treehouse Foods
THS
$882M
| $25K | ﹤0.01% |
+496
| New | +$25K |
|
1472
Vanguard FTSE Pacific ETF
VPL
$7.98B
| $25K | ﹤0.01% |
+382
| New | +$25K |
|
|
MAGN
1473
Magnera Corporation
MAGN
$393M
| $25K | ﹤0.01% |
619
-813
| -57% | -$32.8K |
|
|
TCS
1474
DELISTED
THE CONTAINER STORE GROUP, INC.
TCS
| $25K | ﹤0.01% |
+493
| New | +$25K |
|
1475
DMC Global
BOOM
$145M
| $24K | ﹤0.01% |
1,108
+791
| +250% | +$17.1K |
|