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
|
$80M |
| 2 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$45.3M |
| 3 |
Alphabet (Google) Class C
GOOG
|
$38.8M |
| 4 |
Amazon
AMZN
|
$38.6M |
| 5 |
Tesla
TSLA
|
$36M |
Top Sells
| 1 |
Alibaba
BABA
|
$46.4M |
| 2 |
Boeing
BA
|
$29.8M |
| 3 |
SPDR Gold Trust
GLD
|
$18.2M |
| 4 |
Biogen
BIIB
|
$15.8M |
| 5 |
NVIDIA
NVDA
|
$14.3M |
Sector Composition
| 1 | Technology | 22.73% |
| 2 | Consumer Discretionary | 17.54% |
| 3 | Communication Services | 10.03% |
| 4 | Healthcare | 9.29% |
| 5 | Industrials | 5.63% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
Wolfspeed
WOLF
$196M
| $389K | ﹤0.01% |
8,446
-54
| -0.6% | -$2.49K |
|
|
CONN
527
DELISTED
Conn's Inc.
CONN
| $386K | ﹤0.01% |
+31,184
| New | +$386K |
|
528
Texas Capital Bancshares
TCBI
$3.96B
| $384K | ﹤0.01% |
6,765
+3,896
| +136% | +$221K |
|
529
Zurn Elkay Water Solutions
ZWS
$7.71B
| $384K | ﹤0.01% |
+24,480
| New | +$384K |
|
530
Portland General Electric
POR
$4.69B
| $383K | ﹤0.01% |
6,866
+3,820
| +125% | +$213K |
|
|
JJG
531
DELISTED
iPath Series B Bloomberg Grains Subindex Total ReturnSM ETN
JJG
| $383K | ﹤0.01% |
8,320
+3,800
| +84% | +$175K |
|
532
National Beverage
FIZZ
$3.75B
| $381K | ﹤0.01% |
+14,944
| New | +$381K |
|
533
Hologic
HOLX
$14.8B
| $381K | ﹤0.01% |
7,313
-9,813
| -57% | -$511K |
|
534
TD Synnex
SNX
$12.3B
| $378K | ﹤0.01% |
5,876
-19,588
| -77% | -$1.26M |
|
|
SAFE
535
Safehold
SAFE
$1.17B
| $377K | ﹤0.01% |
5,341
+4,447
| +497% | +$314K |
|
536
SPDR S&P Bank ETF
KBE
$1.62B
| $375K | ﹤0.01% |
7,950
-4,785
| -38% | -$226K |
|
|
TLND
537
DELISTED
Talend S.A. American Depositary Shares
TLND
| $375K | ﹤0.01% |
9,592
+3,289
| +52% | +$129K |
|
538
Manchester United
MANU
$2.71B
| $374K | ﹤0.01% |
+18,787
| New | +$374K |
|
539
Semtech
SMTC
$5.26B
| $374K | ﹤0.01% |
7,082
-3,992
| -36% | -$211K |
|
540
Sibanye-Stillwater
SBSW
$6.08B
| $373K | ﹤0.01% |
37,566
-34,008
| -48% | -$338K |
|
541
Bunge Global
BG
$16.9B
| $372K | ﹤0.01% |
+6,473
| New | +$372K |
|
542
Dentsply Sirona
XRAY
$2.92B
| $371K | ﹤0.01% |
6,564
+3,787
| +136% | +$214K |
|
543
Silicon Motion
SIMO
$2.8B
| $365K | ﹤0.01% |
+7,198
| New | +$365K |
|
544
Direxion Daily Emerging Markets Bull 3X Shares
EDC
$86.4M
| $362K | ﹤0.01% |
4,059
+3,242
| +397% | +$289K |
|
545
Affiliated Managers Group
AMG
$6.54B
| $361K | ﹤0.01% |
+4,271
| New | +$361K |
|
546
First Trust Natural Gas ETF
FCG
$329M
| $360K | ﹤0.01% |
29,888
+18,973
| +174% | +$229K |
|
|
WRK
547
DELISTED
WestRock Company
WRK
| $359K | ﹤0.01% |
8,382
-6,157
| -42% | -$264K |
|
548
Syndax Pharmaceuticals
SNDX
$1.47B
| $358K | ﹤0.01% |
+40,826
| New | +$358K |
|
549
Direxion Daily Junior Gold Miners Index Bear 2X Shares
JDST
$46.5M
| $357K | ﹤0.01% |
146
+9
| +7% | +$22K |
|
550
Ultra Clean Holdings
UCTT
$1.11B
| $357K | ﹤0.01% |
15,236
-981
| -6% | -$23K |
|