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 | |
|---|---|---|---|---|---|---|
1301
SelectQuote
SLQT
$361M
| $99K | ﹤0.01% |
4,783
-15,766
| -77% | -$326K |
|
1302
DHT Holdings
DHT
$1.98B
| $98K | ﹤0.01% |
18,773
-53,339
| -74% | -$278K |
|
1303
Iridium Communications
IRDM
$1.89B
| $98K | ﹤0.01% |
2,501
-156
| -6% | -$6.11K |
|
1304
McEwen Inc.
MUX
$748M
| $98K | ﹤0.01% |
9,992
+6,808
| +214% | +$66.8K |
|
1305
Schwab US Large-Cap Growth ETF
SCHG
$49.5B
| $98K | ﹤0.01% |
6,128
+4,248
| +226% | +$67.9K |
|
1306
Alliant Energy
LNT
$16.7B
| $97K | ﹤0.01% |
1,885
+821
| +77% | +$42.2K |
|
1307
Chefs' Warehouse
CHEF
$2.7B
| $96K | ﹤0.01% |
3,740
-4,688
| -56% | -$120K |
|
1308
Zymeworks
ZYME
$1.19B
| $96K | ﹤0.01% |
+2,041
| New | +$96K |
|
|
VOXX
1309
DELISTED
VOXX International Corporation Class A
VOXX
| $96K | ﹤0.01% |
+7,526
| New | +$96K |
|
|
COHR
1310
DELISTED
Coherent Inc
COHR
| $96K | ﹤0.01% |
+640
| New | +$96K |
|
1311
Asbury Automotive
ABG
$4.8B
| $95K | ﹤0.01% |
+653
| New | +$95K |
|
1312
Compañía de Minas Buenaventura
BVN
$5.1B
| $95K | ﹤0.01% |
7,811
-9,511
| -55% | -$116K |
|
1313
Cannae Holdings
CNNE
$1.11B
| $95K | ﹤0.01% |
2,160
+602
| +39% | +$26.5K |
|
1314
Under Armour
UAA
$2.08B
| $95K | ﹤0.01% |
5,568
-13,763
| -71% | -$235K |
|
|
LMRK
1315
DELISTED
Landmark Infrastructure Partners LP Common Units
LMRK
| $95K | ﹤0.01% |
+8,952
| New | +$95K |
|
1316
US Global Investors
GROW
$32.3M
| $94K | ﹤0.01% |
17,354
-47,958
| -73% | -$260K |
|
1317
Linde
LIN
$226B
| $94K | ﹤0.01% |
360
-265
| -42% | -$69.2K |
|
1318
Ooma
OOMA
$345M
| $94K | ﹤0.01% |
6,593
+6,378
| +2,967% | +$90.9K |
|
1319
Vanguard Total World Stock ETF
VT
$52.7B
| $94K | ﹤0.01% |
1,016
-205
| -17% | -$19K |
|
1320
Culp
CULP
$59.5M
| $93K | ﹤0.01% |
5,907
-497
| -8% | -$7.83K |
|
1321
St. Joe Company
JOE
$3.01B
| $93K | ﹤0.01% |
+2,209
| New | +$93K |
|
1322
Nelnet
NNI
$4.46B
| $93K | ﹤0.01% |
+1,310
| New | +$93K |
|
1323
Wave Life Sciences
WVE
$1.11B
| $93K | ﹤0.01% |
11,823
+8,109
| +218% | +$63.8K |
|
|
PCOM
1324
DELISTED
Points.com Inc. Common Shares
PCOM
| $93K | ﹤0.01% |
6,508
+5,169
| +386% | +$73.9K |
|
1325
Matsons
MATX
$3.29B
| $92K | ﹤0.01% |
+1,625
| New | +$92K |
|