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 | |
|---|---|---|---|---|---|---|
|
TBHC
376
The Brand House Collective, Inc. Common Stock
TBHC
$42.2M
| $1.15M | ﹤0.01% |
64,053
+40,731
| +175% | +$728K |
|
|
CLDR
377
DELISTED
Cloudera, Inc.
CLDR
| $1.14M | ﹤0.01% |
82,305
-32,438
| -28% | -$451K |
|
378
Direxion Daily Energy Bull 2X Shares
ERX
$217M
| $1.14M | ﹤0.01% |
79,540
+24,069
| +43% | +$345K |
|
379
J.M. Smucker
SJM
$11.8B
| $1.14M | ﹤0.01% |
9,852
+5,271
| +115% | +$609K |
|
380
US Physical Therapy
USPH
$1.29B
| $1.14M | ﹤0.01% |
+9,448
| New | +$1.14M |
|
381
Bandwidth Inc
BAND
$473M
| $1.13M | ﹤0.01% |
7,381
+3,502
| +90% | +$538K |
|
382
Perion Network
PERI
$409M
| $1.13M | ﹤0.01% |
89,151
+57,008
| +177% | +$725K |
|
383
TripAdvisor
TRIP
$2.02B
| $1.13M | ﹤0.01% |
39,377
-179,786
| -82% | -$5.17M |
|
384
Marathon Digital Holdings
MARA
$5.9B
| $1.13M | ﹤0.01% |
108,026
+68,570
| +174% | +$715K |
|
|
X
385
DELISTED
US Steel
X
| $1.12M | ﹤0.01% |
66,830
+57,430
| +611% | +$962K |
|
|
SNP
386
DELISTED
CHINA PETROLEUM & CHEMICAL CORPORATION ADS (REP 100 ORDINARY H SHARES)
SNP
| $1.12M | ﹤0.01% |
25,124
-10,324
| -29% | -$460K |
|
|
CHU
387
DELISTED
China Unicom (HONG KONG) Limited
CHU
| $1.12M | ﹤0.01% |
196,672
+154,868
| +370% | +$880K |
|
|
ZEV
388
DELISTED
Lightning eMotors, Inc.
ZEV
| $1.12M | ﹤0.01% |
+4,234
| New | +$1.12M |
|
389
iShares MSCI Turkey ETF
TUR
$162M
| $1.11M | ﹤0.01% |
+41,854
| New | +$1.11M |
|
390
HubSpot
HUBS
$26.3B
| $1.1M | ﹤0.01% |
2,774
-653
| -19% | -$259K |
|
391
Workiva
WK
$4.56B
| $1.1M | ﹤0.01% |
11,967
+8,673
| +263% | +$794K |
|
392
Fulgent Genetics
FLGT
$682M
| $1.09M | ﹤0.01% |
20,949
+20,198
| +2,689% | +$1.05M |
|
|
RBAC
393
DELISTED
RedBall Acquisition Corp.
RBAC
| $1.09M | ﹤0.01% |
+100,057
| New | +$1.09M |
|
394
Ubiquiti
UI
$35.3B
| $1.09M | ﹤0.01% |
+3,896
| New | +$1.09M |
|
395
Magnite
MGNI
$3.61B
| $1.08M | ﹤0.01% |
35,296
-10,009
| -22% | -$307K |
|
396
Blink Charging
BLNK
$130M
| $1.07M | ﹤0.01% |
25,017
+20,444
| +447% | +$874K |
|
397
Equitable Holdings
EQH
$15.9B
| $1.07M | ﹤0.01% |
+41,789
| New | +$1.07M |
|
|
RIDE
398
DELISTED
Lordstown Motors Corp. Class A Common Stock
RIDE
| $1.07M | ﹤0.01% |
3,545
+3,163
| +828% | +$951K |
|
399
Norfolk Southern
NSC
$61.8B
| $1.06M | ﹤0.01% |
4,480
+1,066
| +31% | +$253K |
|
400
Performance Food Group
PFGC
$16.4B
| $1.06M | ﹤0.01% |
22,360
+20,601
| +1,171% | +$980K |
|