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 |
Alibaba
BABA
|
+$117M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$97.6M |
| 3 |
Walt Disney
DIS
|
+$73.4M |
| 4 |
Citigroup
C
|
+$45.8M |
| 5 |
KraneShares CSI China Internet ETF
KWEB
|
+$41.5M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$149M |
| 2 |
Amazon
AMZN
|
+$107M |
| 3 |
SPDR Gold Trust
GLD
|
+$58.6M |
| 4 |
Coinbase
COIN
|
+$56.5M |
| 5 |
NVIDIA
NVDA
|
+$48.2M |
Sector Composition
| 1 | Technology | 16.06% |
| 2 | Consumer Discretionary | 14.45% |
| 3 | Communication Services | 10.03% |
| 4 | Financials | 9.44% |
| 5 | Healthcare | 9.18% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
EH
426
EHang Holdings
EH
$1.18B
| $1.04M | ﹤0.01% |
62,113
+42,092
| +210% | +$707K |
|
427
JFrog
FROG
$5.83B
| $1.04M | ﹤0.01% |
30,097
-5,586
| -16% | -$193K |
|
428
Teladoc Health
TDOC
$1.38B
| $1.04M | ﹤0.01% |
+48,350
| New | +$1.04M |
|
429
Yum! Brands
YUM
$41.1B
| $1.03M | ﹤0.01% |
+7,889
| New | +$1.03M |
|
430
Avantor
AVTR
$8.75B
| $1.03M | ﹤0.01% |
45,009
-44,545
| -50% | -$1.02M |
|
431
CRH
CRH
$74.3B
| $1.03M | ﹤0.01% |
+14,829
| New | +$1.03M |
|
432
Transocean
RIG
$2.96B
| $1.03M | ﹤0.01% |
+161,422
| New | +$1.03M |
|
433
Coeur Mining
CDE
$9.21B
| $1.02M | ﹤0.01% |
314,305
+180,400
| +135% | +$588K |
|
434
ING
ING
$71B
| $1.02M | ﹤0.01% |
68,002
+1,747
| +3% | +$26.2K |
|
435
Noble Corp
NE
$4.75B
| $1.02M | ﹤0.01% |
21,208
-13,061
| -38% | -$629K |
|
436
Trex
TREX
$6.43B
| $1.01M | ﹤0.01% |
+12,158
| New | +$1.01M |
|
437
Aehr Test Systems
AEHR
$803M
| $1M | ﹤0.01% |
+37,739
| New | +$1M |
|
|
TEN
438
Tsakos Energy Navigation Ltd.
TEN
$676M
| $996K | ﹤0.01% |
44,841
+20,986
| +88% | +$466K |
|
439
Mid-America Apartment Communities
MAA
$17B
| $991K | ﹤0.01% |
7,373
+6,707
| +1,007% | +$901K |
|
440
AGCO
AGCO
$8.23B
| $990K | ﹤0.01% |
+8,155
| New | +$990K |
|
441
Hudbay
HBM
$5.15B
| $988K | ﹤0.01% |
179,027
+111,348
| +165% | +$614K |
|
442
Royalty Pharma
RPRX
$15.5B
| $972K | ﹤0.01% |
34,615
-12,897
| -27% | -$362K |
|
443
AerSale
ASLE
$397M
| $969K | ﹤0.01% |
76,361
+18,100
| +31% | +$230K |
|
444
NextEra Energy, Inc.
NEE
$144B
| $958K | ﹤0.01% |
+15,782
| New | +$958K |
|
445
Huntington Bancshares
HBAN
$25.7B
| $955K | ﹤0.01% |
75,152
-32,432
| -30% | -$412K |
|
446
Mattel
MAT
$5.96B
| $955K | ﹤0.01% |
50,614
+26,357
| +109% | +$497K |
|
447
iQIYI
IQ
$2.69B
| $950K | ﹤0.01% |
+194,693
| New | +$950K |
|
448
TransDigm Group
TDG
$72.9B
| $941K | ﹤0.01% |
931
-1,630
| -64% | -$1.65M |
|
449
ProShares Short Bitcoin Strategy ETF
BITI
$76.2M
| $939K | ﹤0.01% |
+14,290
| New | +$939K |
|
450
Schwab Short-Term US Treasury ETF
SCHO
$11.1B
| $939K | ﹤0.01% |
+38,800
| New | +$939K |
|