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
|
+$258M |
| 2 |
Vanguard S&P 500 ETF
VOO
|
+$75.7M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$67.2M |
| 4 |
Alphabet (Google) Class C
GOOG
|
+$59.4M |
| 5 |
Intel
INTC
|
+$45.8M |
Top Sells
| 1 |
SPDR S&P 500 ETF Trust
SPY
|
+$56.8M |
| 2 |
iShares Silver Trust
SLV
|
+$45.9M |
| 3 |
Ford
F
|
+$32.5M |
| 4 |
Exxon Mobil
XOM
|
+$20.4M |
| 5 |
Caterpillar
CAT
|
+$19.2M |
Sector Composition
| 1 | Technology | 26.01% |
| 2 | Consumer Discretionary | 9.82% |
| 3 | Communication Services | 9.82% |
| 4 | Financials | 8.68% |
| 5 | Healthcare | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1476
Adecoagro
AGRO
$806M
| $42K | ﹤0.01% |
4,993
-16,720
| -77% | -$141K |
|
|
ESGR
1477
DELISTED
Enstar Group
ESGR
| $42K | ﹤0.01% |
+200
| New | +$42K |
|
1478
Fastly
FSLY
$1.14B
| $42K | ﹤0.01% |
3,628
| – | – |
|
1479
Riot Platforms
RIOT
$5.87B
| $42K | ﹤0.01% |
10,100
| – | – |
|
1480
Stoneridge
SRI
$228M
| $42K | ﹤0.01% |
2,470
-1,145
| -32% | -$19.5K |
|
1481
VistaGen Therapeutics
VTGN
$104M
| $42K | ﹤0.01% |
+1,617
| New | +$42K |
|
1482
Conduent
CNDT
$445M
| $41K | ﹤0.01% |
+9,513
| New | +$41K |
|
1483
Incyte
INCY
$16.2B
| $41K | ﹤0.01% |
545
-451
| -45% | -$33.9K |
|
1484
Rambus
RMBS
$9.26B
| $41K | ﹤0.01% |
1,931
-2,250
| -54% | -$47.8K |
|
1485
Comscore
SCOR
$34.1M
| $41K | ﹤0.01% |
1,005
+1,004
| +100,400% | +$41K |
|
1486
Sterling Infrastructure
STRL
$9.54B
| $41K | ﹤0.01% |
1,898
-762
| -29% | -$16.5K |
|
1487
Texas Capital Bancshares
TCBI
$3.98B
| $41K | ﹤0.01% |
+782
| New | +$41K |
|
1488
Invesco S&P 500 Top 50 ETF
XLG
$10.6B
| $41K | ﹤0.01% |
1,460
+1,000
| +217% | +$28.1K |
|
|
QUOT
1489
DELISTED
Quotient Technology Inc
QUOT
| $41K | ﹤0.01% |
+13,806
| New | +$41K |
|
|
EVFM
1490
DELISTED
Evofem Biosciences, Inc. Common Stock
EVFM
| $41K | ﹤0.01% |
36,503
+35,970
| +6,749% | +$40.4K |
|
1491
Build-A-Bear
BBW
$971M
| $40K | ﹤0.01% |
2,474
-14,715
| -86% | -$238K |
|
1492
Diamondback Energy
FANG
$39.6B
| $40K | ﹤0.01% |
+334
| New | +$40K |
|
1493
Lifecore Biomedical
LFCR
$281M
| $40K | ﹤0.01% |
4,020
+3,109
| +341% | +$30.9K |
|
1494
Nine Energy Service
NINE
$30.5M
| $40K | ﹤0.01% |
+15,184
| New | +$40K |
|
1495
RLJ Lodging Trust
RLJ
$1.15B
| $40K | ﹤0.01% |
+3,715
| New | +$40K |
|
1496
Bio-Techne
TECH
$7.97B
| $40K | ﹤0.01% |
+468
| New | +$40K |
|
1497
WisdomTree Floating Rate Treasury Fund
USFR
$18.8B
| $40K | ﹤0.01% |
800
+500
| +167% | +$25K |
|
1498
Cactus
WHD
$2.74B
| $40K | ﹤0.01% |
1,015
-4,831
| -83% | -$190K |
|
|
CNSL
1499
DELISTED
Consolidated Communications Holdings, Inc.
CNSL
| $40K | ﹤0.01% |
5,769
-8,172
| -59% | -$56.7K |
|
|
POL
1500
DELISTED
Polished.com Inc.
POL
| $40K | ﹤0.01% |
671
+656
| +4,373% | +$39.1K |
|