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 | |
|---|---|---|---|---|---|---|
1326
NMI Holdings
NMIH
$3.13B
| $18K | ﹤0.01% |
698
-30,932
| -98% | -$798K |
|
1327
Syndax Pharmaceuticals
SNDX
$1.41B
| $18K | ﹤0.01% |
3,430
+1,886
| +122% | +$9.9K |
|
1328
Vipshop
VIPS
$8.95B
| $18K | ﹤0.01% |
2,323
-245,027
| -99% | -$1.9M |
|
|
LGF.B
1329
DELISTED
Lions Gate Entertainment Corp. Class B Non-Voting Shares
LGF.B
| $18K | ﹤0.01% |
1,235
-1,516
| -55% | -$22.1K |
|
|
TNAV
1330
DELISTED
Telenav Inc.
TNAV
| $18K | ﹤0.01% |
3,016
+1,053
| +54% | +$6.28K |
|
|
I
1331
DELISTED
INTELSAT S. A.
I
| $18K | ﹤0.01% |
+1,159
| New | +$18K |
|
|
FLY
1332
DELISTED
Fly Leasing Limited
FLY
| $18K | ﹤0.01% |
1,372
+169
| +14% | +$2.22K |
|
1333
Gentex
GNTX
$6.24B
| $17K | ﹤0.01% |
858
-5,573
| -87% | -$110K |
|
|
ADAM
1334
Adamas Trust, Inc. Common Stock
ADAM
$654M
| $17K | ﹤0.01% |
715
+212
| +42% | +$5.04K |
|
1335
Prosperity Bancshares
PB
$6.44B
| $17K | ﹤0.01% |
257
+12
| +5% | +$794 |
|
1336
Invesco S&P SmallCap Health Care ETF
PSCH
$144M
| $17K | ﹤0.01% |
450
-1,773
| -80% | -$67K |
|
1337
Tilly's
TLYS
$59.7M
| $17K | ﹤0.01% |
1,570
+1,217
| +345% | +$13.2K |
|
1338
Virtu Financial
VIRT
$3.14B
| $17K | ﹤0.01% |
755
-34,214
| -98% | -$770K |
|
|
CNH
1339
CNH Industrial
CNH
$14B
| $17K | ﹤0.01% |
2,014
+963
| +92% | +$8.13K |
|
|
CIR
1340
DELISTED
CIRCOR International, Inc
CIR
| $17K | ﹤0.01% |
535
+534
| +53,400% | +$17K |
|
|
VNE
1341
DELISTED
Veoneer, Inc.
VNE
| $17K | ﹤0.01% |
760
-8,349
| -92% | -$187K |
|
|
LORL
1342
DELISTED
Loral Space and Communications, Inc.
LORL
| $17K | ﹤0.01% |
487
-5,034
| -91% | -$176K |
|
|
EV
1343
DELISTED
Eaton Vance Corp.
EV
| $17K | ﹤0.01% |
427
-5,553
| -93% | -$221K |
|
|
TYPE
1344
DELISTED
Monotype Imaging Holdings Inc.
TYPE
| $17K | ﹤0.01% |
859
-473
| -36% | -$9.36K |
|
|
VVUS
1345
DELISTED
Vivus Inc
VVUS
| $17K | ﹤0.01% |
4,264
+3,848
| +925% | +$15.3K |
|
1346
Altisource Portfolio Solutions
ASPS
$124M
| $16K | ﹤0.01% |
+87
| New | +$16K |
|
1347
Caterpillar
CAT
$202B
| $16K | ﹤0.01% |
120
-300
| -71% | -$40K |
|
1348
Eldorado Gold
EGO
$5.62B
| $16K | ﹤0.01% |
3,536
+1,727
| +95% | +$7.81K |
|
1349
Spok Holdings
SPOK
$363M
| $16K | ﹤0.01% |
1,208
-174
| -13% | -$2.31K |
|
1350
US Physical Therapy
USPH
$1.25B
| $16K | ﹤0.01% |
+154
| New | +$16K |
|