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 | |
|---|---|---|---|---|---|---|
1326
Simply Good Foods
SMPL
$2.73B
| $92K | ﹤0.01% |
+2,964
| New | +$92K |
|
1327
Elastic
ESTC
$9.3B
| $91K | ﹤0.01% |
627
-3,750
| -86% | -$544K |
|
1328
KNOT Offshore Partners
KNOP
$300M
| $91K | ﹤0.01% |
6,048
-2,198
| -27% | -$33.1K |
|
1329
Kornit Digital
KRNT
$647M
| $91K | ﹤0.01% |
1,022
-6,642
| -87% | -$591K |
|
1330
Uranium Energy
UEC
$5.27B
| $91K | ﹤0.01% |
52,229
+16,792
| +47% | +$29.3K |
|
|
ONIT
1331
Onity Group Inc.
ONIT
$367M
| $91K | ﹤0.01% |
3,178
+771
| +32% | +$22.1K |
|
1332
CEVA Inc
CEVA
$564M
| $90K | ﹤0.01% |
+1,980
| New | +$90K |
|
1333
Hilton Grand Vacations
HGV
$3.98B
| $90K | ﹤0.01% |
+2,889
| New | +$90K |
|
1334
Rollins
ROL
$27.8B
| $90K | ﹤0.01% |
+2,321
| New | +$90K |
|
|
FPRX
1335
DELISTED
Five Prime Therapeutics, Inc.
FPRX
| $90K | ﹤0.01% |
5,292
+5,108
| +2,776% | +$86.9K |
|
1336
Fuel Tech
FTEK
$113M
| $89K | ﹤0.01% |
+23,070
| New | +$89K |
|
|
1337
iShares Silver Trust
SLV
$20.7B
| $89K | ﹤0.01% |
3,645
-1,065,491
| -100% | -$26M |
|
|
GTT
1338
DELISTED
GTT Communications, Inc.
GTT
| $89K | ﹤0.01% |
25,039
-29,749
| -54% | -$106K |
|
1339
Axcelis
ACLS
$2.69B
| $88K | ﹤0.01% |
+3,039
| New | +$88K |
|
1340
Identive
INVE
$85.9M
| $88K | ﹤0.01% |
+10,443
| New | +$88K |
|
1341
TIM SA
TIMB
$10.3B
| $88K | ﹤0.01% |
6,353
+698
| +12% | +$9.67K |
|
|
SRCL
1342
DELISTED
Stericycle Inc
SRCL
| $87K | ﹤0.01% |
+1,261
| New | +$87K |
|
|
EVOP
1343
DELISTED
EVO Payments, Inc. Class A Common Stock
EVOP
| $87K | ﹤0.01% |
+3,243
| New | +$87K |
|
|
SGG
1344
DELISTED
iPath Series B Bloomberg Sugar Subindex Total ReturnSM ETN
SGG
| $87K | ﹤0.01% |
1,885
+932
| +98% | +$43K |
|
1345
Acadia Healthcare
ACHC
$2.01B
| $86K | ﹤0.01% |
+1,729
| New | +$86K |
|
1346
Amneal Pharmaceuticals
AMRX
$3.14B
| $86K | ﹤0.01% |
18,905
+6,875
| +57% | +$31.3K |
|
1347
A10 Networks
ATEN
$1.26B
| $86K | ﹤0.01% |
8,790
-25,448
| -74% | -$249K |
|
1348
Corbus Pharmaceuticals
CRBP
$116M
| $86K | ﹤0.01% |
2,298
-6,736
| -75% | -$252K |
|
1349
iShares US Industrials ETF
IYJ
$1.67B
| $86K | ﹤0.01% |
894
+36
| +4% | +$3.46K |
|
1350
Option Care Health
OPCH
$4.62B
| $86K | ﹤0.01% |
5,525
-2,577
| -32% | -$40.1K |
|