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 |
Invesco QQQ Trust
QQQ
|
+$41.7M |
| 2 |
Mastercard
MA
|
+$33.6M |
| 3 |
Alibaba
BABA
|
+$33.4M |
| 4 |
Apple
AAPL
|
+$27.9M |
| 5 |
Alphabet (Google) Class C
GOOG
|
+$26M |
Top Sells
| 1 |
JPMorgan Chase
JPM
|
+$60M |
| 2 |
TSMC
TSM
|
+$49.5M |
| 3 |
iShares Silver Trust
SLV
|
+$26M |
| 4 |
Amazon
AMZN
|
+$25.2M |
| 5 |
Boeing
BA
|
+$22.1M |
Sector Composition
| 1 | Consumer Discretionary | 23.12% |
| 2 | Technology | 13.05% |
| 3 | Healthcare | 11.53% |
| 4 | Industrials | 7.38% |
| 5 | Communication Services | 6.71% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
501
Ryman Hospitality Properties
RHP
$6.34B
| $786K | ﹤0.01% |
11,613
+3,038
| +35% | +$206K |
|
502
Sabesp
SBS
$15.8B
| $786K | ﹤0.01% |
91,616
+80,059
| +693% | +$687K |
|
|
SOGO
503
DELISTED
Sogou Inc. American Depositary Shares, each representing one Class A Ordinary Share
SOGO
| $783K | ﹤0.01% |
96,181
+16,319
| +20% | +$133K |
|
504
Global X Uranium ETF
URA
$4.31B
| $781K | ﹤0.01% |
50,956
+34,220
| +204% | +$524K |
|
|
SGI
505
Somnigroup International Inc.
SGI
$17.9B
| $780K | ﹤0.01% |
+28,891
| New | +$780K |
|
506
Invesco CurrencyShares Canadian Dollar Trust
FXC
$91.6M
| $778K | ﹤0.01% |
10,072
-2,280
| -18% | -$176K |
|
507
H&R Block
HRB
$6.73B
| $778K | ﹤0.01% |
+49,065
| New | +$778K |
|
508
Rayonier
RYN
$4.04B
| $775K | ﹤0.01% |
27,754
+27,069
| +3,952% | +$756K |
|
|
HA
509
DELISTED
Hawaiian Holdings, Inc.
HA
| $775K | ﹤0.01% |
43,793
+40,982
| +1,458% | +$725K |
|
|
GNOG
510
DELISTED
Golden Nugget Online Gaming, Inc. Class A Common Stock
GNOG
| $769K | ﹤0.01% |
39,065
-84,152
| -68% | -$1.66M |
|
511
Tenaris
TS
$18.5B
| $768K | ﹤0.01% |
+48,184
| New | +$768K |
|
512
EPR Properties
EPR
$4.19B
| $767K | ﹤0.01% |
+23,604
| New | +$767K |
|
513
Lamb Weston
LW
$7.79B
| $766K | ﹤0.01% |
9,729
+4,822
| +98% | +$380K |
|
|
TCF
514
DELISTED
TCF Financial Corporation Common Stock
TCF
| $766K | ﹤0.01% |
20,706
+20,098
| +3,306% | +$744K |
|
515
Clean Energy Fuels
CLNE
$561M
| $764K | ﹤0.01% |
97,294
+24,335
| +33% | +$191K |
|
516
Alcoa
AA
$8.01B
| $763K | ﹤0.01% |
33,102
-39,403
| -54% | -$908K |
|
517
Automatic Data Processing
ADP
$118B
| $759K | ﹤0.01% |
+4,311
| New | +$759K |
|
518
Microvision
MVIS
$334M
| $758K | ﹤0.01% |
+141,006
| New | +$758K |
|
519
Blackbaud
BLKB
$3.33B
| $750K | ﹤0.01% |
+13,044
| New | +$750K |
|
|
EVRI
520
DELISTED
Everi Holdings
EVRI
| $743K | ﹤0.01% |
53,845
+43,115
| +402% | +$595K |
|
521
ProShares Short 20+ Year Treasury ETF
TBF
$69.2M
| $741K | ﹤0.01% |
46,996
+18,208
| +63% | +$287K |
|
522
Citizens Financial Group
CFG
$22.3B
| $740K | ﹤0.01% |
+20,710
| New | +$740K |
|
523
Tronox
TROX
$755M
| $740K | ﹤0.01% |
50,647
+24,228
| +92% | +$354K |
|
524
Veeco
VECO
$1.52B
| $740K | ﹤0.01% |
42,643
+13,229
| +45% | +$230K |
|
525
Advance Auto Parts
AAP
$3.55B
| $739K | ﹤0.01% |
4,693
-6,931
| -60% | -$1.09M |
|