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 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$278M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$84.4M |
| 3 |
NVIDIA
NVDA
|
+$76.9M |
| 4 |
TSMC
TSM
|
+$74.9M |
| 5 |
Amazon
AMZN
|
+$53.5M |
Top Sells
| 1 |
Apple
AAPL
|
+$497M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$73.7M |
| 3 |
Alibaba
BABA
|
+$49M |
| 4 |
Advanced Micro Devices
AMD
|
+$48.1M |
| 5 |
Uber
UBER
|
+$41.8M |
Sector Composition
| 1 | Technology | 22.9% |
| 2 | Consumer Discretionary | 12.26% |
| 3 | Healthcare | 9.52% |
| 4 | Communication Services | 8.42% |
| 5 | Financials | 7.07% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
751
Neurocrine Biosciences
NBIX
$14.2B
| $265K | ﹤0.01% |
+2,400
| New | +$265K |
|
752
Consolidated Edison
ED
$35B
| $264K | ﹤0.01% |
+2,393
| New | +$264K |
|
|
NAK
753
Northern Dynasty Minerals
NAK
$451M
| $264K | ﹤0.01% |
+229,879
| New | +$264K |
|
754
Silicon Motion
SIMO
$3.03B
| $264K | ﹤0.01% |
5,234
-2,038
| -28% | -$103K |
|
755
abrdn Physical Palladium Shares ETF
PALL
$560M
| $263K | ﹤0.01% |
+2,912
| New | +$263K |
|
|
ATSG
756
DELISTED
Air Transport Services Group, Inc.
ATSG
| $263K | ﹤0.01% |
+11,750
| New | +$263K |
|
757
BorgWarner
BWA
$9.53B
| $262K | ﹤0.01% |
+9,153
| New | +$262K |
|
758
FNB Corp
FNB
$5.9B
| $262K | ﹤0.01% |
+19,487
| New | +$262K |
|
|
BLUE
759
DELISTED
bluebird bio
BLUE
| $259K | ﹤0.01% |
+53,134
| New | +$259K |
|
760
ProShares UltraPro Dow 30
UDOW
$742M
| $259K | ﹤0.01% |
2,958
-21,774
| -88% | -$1.91M |
|
761
BGC Group
BGC
$4.84B
| $257K | ﹤0.01% |
28,094
-8,882
| -24% | -$81.3K |
|
762
National Vision
EYE
$1.82B
| $255K | ﹤0.01% |
19,956
+16,549
| +486% | +$211K |
|
763
YieldMax TSLA Option Income Strategy ETF
TSLY
$1.18B
| $255K | ﹤0.01% |
31,012
+2,017
| +7% | +$16.6K |
|
764
Ameren
AEE
$27B
| $254K | ﹤0.01% |
2,537
+228
| +10% | +$22.8K |
|
765
TD Synnex
SNX
$12.6B
| $254K | ﹤0.01% |
2,451
+2,113
| +625% | +$219K |
|
766
Goldman Sachs Physical Gold ETF Shares
AAAU
$1.77B
| $252K | ﹤0.01% |
+8,170
| New | +$252K |
|
767
Alignment Healthcare
ALHC
$3.23B
| $252K | ﹤0.01% |
13,577
+7,737
| +132% | +$144K |
|
768
SandRidge Energy
SD
$423M
| $251K | ﹤0.01% |
21,991
-20,161
| -48% | -$230K |
|
769
PubMatic
PUBM
$385M
| $249K | ﹤0.01% |
+27,256
| New | +$249K |
|
770
Qfin Holdings, Inc. American Depositary Shares
QFIN
$3.8B
| $249K | ﹤0.01% |
5,546
+2,383
| +75% | +$107K |
|
771
BioCryst Pharmaceuticals
BCRX
$1.69B
| $248K | ﹤0.01% |
+33,149
| New | +$248K |
|
772
Hudbay
HBM
$5.38B
| $246K | ﹤0.01% |
+32,491
| New | +$246K |
|
773
ProShares VIX Short-Term Futures ETF
VIXY
$81.4M
| $246K | ﹤0.01% |
4,895
+2,177
| +80% | +$109K |
|
774
American Superconductor
AMSC
$2.46B
| $245K | ﹤0.01% |
13,508
-7,704
| -36% | -$140K |
|
775
iShares Select Dividend ETF
DVY
$20.8B
| $243K | ﹤0.01% |
+1,813
| New | +$243K |
|