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
|
+$92M |
| 2 |
Walt Disney
DIS
|
+$25.4M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$12.8M |
| 4 |
Baidu
BIDU
|
+$12.2M |
| 5 |
RHT
Red Hat Inc
RHT
|
+$11.6M |
Top Sells
| 1 |
iShares Russell 2000 ETF
IWM
|
+$61.4M |
| 2 |
Amazon
AMZN
|
+$59.6M |
| 3 |
Alphabet (Google) Class C
GOOG
|
+$35.5M |
| 4 |
Apple
AAPL
|
+$19.6M |
| 5 |
Financial Select Sector SPDR Fund
XLF
|
+$18.2M |
Sector Composition
| 1 | Communication Services | 16.98% |
| 2 | Technology | 12.42% |
| 3 | Healthcare | 10.02% |
| 4 | Consumer Discretionary | 8.53% |
| 5 | Industrials | 6.01% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
951
Innovator IBD 50 ETF
FFTY
$79.9M
| $83K | ﹤0.01% |
2,499
+1,152
| +86% | +$38.3K |
|
952
Hannon Armstrong Sustainable Infrastructure Capital
HASI
$3.45B
| $83K | ﹤0.01% |
3,275
-1,147
| -26% | -$29.1K |
|
953
HUB Group
HUBG
$2.21B
| $83K | ﹤0.01% |
4,068
-15,812
| -80% | -$323K |
|
954
Kennametal
KMT
$1.59B
| $83K | ﹤0.01% |
+2,270
| New | +$83K |
|
|
XIN
955
DELISTED
Xinyuan Real Estate
XIN
| $83K | ﹤0.01% |
1,708
+1,274
| +294% | +$61.9K |
|
|
NS
956
DELISTED
NuStar Energy L.P.
NS
| $83K | ﹤0.01% |
+3,100
| New | +$83K |
|
957
Scansource
SCSC
$948M
| $82K | ﹤0.01% |
2,311
+2,277
| +6,697% | +$80.8K |
|
958
iPath Series B S&P 500 VIX Mid-Term Futures ETN
VXZ
$34.3M
| $82K | ﹤0.01% |
+1,140
| New | +$82K |
|
959
Century Communities
CCS
$1.99B
| $81K | ﹤0.01% |
3,411
-29,634
| -90% | -$704K |
|
960
Bankunited
BKU
$2.9B
| $80K | ﹤0.01% |
2,421
-5,245
| -68% | -$173K |
|
961
Civitas Resources
CIVI
$3.13B
| $80K | ﹤0.01% |
3,529
+1,512
| +75% | +$34.3K |
|
962
Global X MSCI Greece ETF
GREK
$305M
| $80K | ﹤0.01% |
3,319
-1,058
| -24% | -$25.5K |
|
|
ASXC
963
DELISTED
Asensus Surgical, Inc.
ASXC
| $80K | ﹤0.01% |
2,603
+2,023
| +349% | +$62.2K |
|
|
POLY
964
DELISTED
Plantronics, Inc.
POLY
| $80K | ﹤0.01% |
+1,740
| New | +$80K |
|
965
BCE
BCE
$22.5B
| $79K | ﹤0.01% |
1,800
-2,353
| -57% | -$103K |
|
966
Ryman Hospitality Properties
RHP
$6.34B
| $79K | ﹤0.01% |
965
-725
| -43% | -$59.4K |
|
|
LSXMA
967
DELISTED
Liberty Media Corporation Series A Liberty SiriusXM Common Stock
LSXMA
| $79K | ﹤0.01% |
2,869
-16,585
| -85% | -$457K |
|
|
TWO
968
Two Harbors Investment
TWO
$1.06B
| $78K | ﹤0.01% |
+1,458
| New | +$78K |
|
969
Workiva
WK
$4.24B
| $78K | ﹤0.01% |
1,542
+773
| +101% | +$39.1K |
|
|
SEMG
970
DELISTED
SEMGROUP CORPORATION
SEMG
| $78K | ﹤0.01% |
+5,351
| New | +$78K |
|
971
Waste Connections
WCN
$45.3B
| $77K | ﹤0.01% |
877
-6,930
| -89% | -$608K |
|
972
Agios Pharmaceuticals
AGIO
$2.07B
| $76K | ﹤0.01% |
1,133
-9,742
| -90% | -$653K |
|
973
Airgain
AIRG
$49.6M
| $76K | ﹤0.01% |
5,940
+4,912
| +478% | +$62.8K |
|
974
Ambac
AMBC
$415M
| $76K | ﹤0.01% |
4,203
-21,381
| -84% | -$387K |
|
975
VanEck Agribusiness ETF
MOO
$623M
| $76K | ﹤0.01% |
+1,227
| New | +$76K |
|