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 |
NVIDIA
NVDA
|
+$60M |
| 2 |
Microsoft
MSFT
|
+$58.6M |
| 3 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$52.5M |
| 4 |
PayPal
PYPL
|
+$40.9M |
| 5 |
Netflix
NFLX
|
+$29.7M |
Top Sells
| 1 |
Apple
AAPL
|
+$48.7M |
| 2 |
Walmart
WMT
|
+$45.2M |
| 3 |
Adobe
ADBE
|
+$40.6M |
| 4 |
VanEck Oil Services ETF
OIH
|
+$34.2M |
| 5 |
Enphase Energy
ENPH
|
+$27.2M |
Sector Composition
| 1 | Technology | 21.17% |
| 2 | Healthcare | 10.87% |
| 3 | Consumer Discretionary | 10.73% |
| 4 | Communication Services | 10.55% |
| 5 | Financials | 7.54% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
1376
NETGEAR
NTGR
$831M
| $34K | ﹤0.01% |
2,432
-19,690
| -89% | -$275K |
|
1377
Open Text
OTEX
$9.07B
| $34K | ﹤0.01% |
832
-13,518
| -94% | -$552K |
|
|
SII
1378
Sprott
SII
$1.8B
| $34K | ﹤0.01% |
+1,062
| New | +$34K |
|
|
LILM
1379
DELISTED
Lilium N.V. Class A Ordinary Shares
LILM
| $34K | ﹤0.01% |
19,421
-7,685
| -28% | -$13.5K |
|
1380
APi Group
APG
$14.5B
| $33K | ﹤0.01% |
1,860
+988
| +113% | +$17.5K |
|
1381
Cheniere Energy
CQP
$25.2B
| $33K | ﹤0.01% |
727
+370
| +104% | +$16.8K |
|
1382
Enlivex Therapeutics
ENLV
$25.5M
| $33K | ﹤0.01% |
12,675
-38
| -0.3% | -$99 |
|
1383
Ezcorp Inc
EZPW
$1.04B
| $33K | ﹤0.01% |
3,984
+2,600
| +188% | +$21.5K |
|
1384
Golub Capital BDC
GBDC
$3.93B
| $33K | ﹤0.01% |
2,456
+2,269
| +1,213% | +$30.5K |
|
1385
Mercer International
MERC
$206M
| $33K | ﹤0.01% |
+4,117
| New | +$33K |
|
1386
Micron Technology
MU
$176B
| $33K | ﹤0.01% |
530
| – | – |
|
1387
ProPhase Labs
PRPH
$18M
| $33K | ﹤0.01% |
+4,578
| New | +$33K |
|
1388
Root
ROOT
$1.53B
| $33K | ﹤0.01% |
3,718
+2,413
| +185% | +$21.4K |
|
1389
Skillz
SKLZ
$109M
| $33K | ﹤0.01% |
3,679
+1,029
| +39% | +$9.23K |
|
1390
Teekay Tankers
TNK
$1.8B
| $33K | ﹤0.01% |
880
-18,744
| -96% | -$703K |
|
|
TRVN
1391
DELISTED
Trevena, Inc.
TRVN
| $33K | ﹤0.01% |
+1,504
| New | +$33K |
|
1392
Clarivate
CLVT
$2.88B
| $32K | ﹤0.01% |
+3,455
| New | +$32K |
|
1393
Diodes
DIOD
$2.44B
| $32K | ﹤0.01% |
+351
| New | +$32K |
|
1394
Fox Factory Holding Corp
FOXF
$1.14B
| $32K | ﹤0.01% |
+296
| New | +$32K |
|
1395
Oil States International
OIS
$341M
| $32K | ﹤0.01% |
+4,372
| New | +$32K |
|
1396
Regency Centers
REG
$13B
| $32K | ﹤0.01% |
+528
| New | +$32K |
|
1397
Zeta Global
ZETA
$4.84B
| $32K | ﹤0.01% |
+3,766
| New | +$32K |
|
1398
Vanguard Short-Term Bond ETF
BSV
$38.5B
| $31K | ﹤0.01% |
+413
| New | +$31K |
|
|
CBIO
1399
Crescent Biopharma, Inc. Common Stock
CBIO
$174M
| $31K | ﹤0.01% |
+183
| New | +$31K |
|
1400
SPDR Nuveen ICE High Yield Municipal Bond ETF
HYMB
$2.73B
| $31K | ﹤0.01% |
+1,252
| New | +$31K |
|