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 |
Boeing
BA
|
+$49.5M |
| 2 |
Pinduoduo
PDD
|
+$45.3M |
| 3 |
Microsoft
MSFT
|
+$42.5M |
| 4 |
Apple
AAPL
|
+$33.3M |
| 5 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$25.4M |
Top Sells
| 1 |
Broadcom
AVGO
|
+$95.4M |
| 2 |
Citigroup
C
|
+$57.9M |
| 3 |
Pfizer
PFE
|
+$55.9M |
| 4 |
TSMC
TSM
|
+$40.4M |
| 5 |
Starbucks
SBUX
|
+$40.4M |
Sector Composition
| 1 | Technology | 23.11% |
| 2 | Consumer Discretionary | 16.53% |
| 3 | Healthcare | 8.58% |
| 4 | Industrials | 7.58% |
| 5 | Financials | 7.29% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
SBDS
951
Solo Brands, Inc.
SBDS
$25.7M
| $162K | ﹤0.01% |
114,907
+51,287
| +81% | +$72.3K |
|
952
Invesco Senior Loan ETF
BKLN
$6.88B
| $161K | ﹤0.01% |
7,684
-66,833
| -90% | -$1.4M |
|
953
NatWest
NWG
$58B
| $161K | ﹤0.01% |
17,242
-7,671
| -31% | -$71.6K |
|
954
Surgery Partners
SGRY
$2.83B
| $161K | ﹤0.01% |
+5,002
| New | +$161K |
|
955
Ambev
ABEV
$35.7B
| $159K | ﹤0.01% |
65,514
+50,509
| +337% | +$123K |
|
956
Direxion Daily MSCI India Bull 2X Shares
INDL
$68.2M
| $159K | ﹤0.01% |
2,113
+686
| +48% | +$51.6K |
|
957
Monro
MNRO
$534M
| $159K | ﹤0.01% |
+5,518
| New | +$159K |
|
958
Valmont Industries
VMI
$7.63B
| $159K | ﹤0.01% |
+551
| New | +$159K |
|
959
Candel Therapeutics
CADL
$270M
| $158K | ﹤0.01% |
22,838
+17,837
| +357% | +$123K |
|
960
Simply Good Foods
SMPL
$2.78B
| $158K | ﹤0.01% |
4,569
-9,921
| -68% | -$343K |
|
961
ASE Group
ASX
$24.2B
| $157K | ﹤0.01% |
16,106
-1,603
| -9% | -$15.6K |
|
|
MESO
962
Mesoblast
MESO
$1.97B
| $157K | ﹤0.01% |
19,304
+10,652
| +123% | +$86.6K |
|
963
Plug Power
PLUG
$1.74B
| $157K | ﹤0.01% |
69,842
-391,382
| -85% | -$880K |
|
964
Revvity
RVTY
$9.95B
| $157K | ﹤0.01% |
1,234
-3,285
| -73% | -$418K |
|
965
Sigma Lithium
SGML
$604M
| $156K | ﹤0.01% |
12,651
-7,379
| -37% | -$91K |
|
966
Solid Biosciences
SLDB
$413M
| $156K | ﹤0.01% |
22,445
+21,884
| +3,901% | +$152K |
|
967
Axos Financial
AX
$5.21B
| $155K | ﹤0.01% |
+2,480
| New | +$155K |
|
968
Innoviz Technologies
INVZ
$371M
| $155K | ﹤0.01% |
187,864
-109,345
| -37% | -$90.2K |
|
969
YieldMax NVDA Option Income Strategy ETF
NVDY
$1.79B
| $155K | ﹤0.01% |
6,476
-6,521
| -50% | -$156K |
|
970
Lufax Holding
LU
$2.62B
| $154K | ﹤0.01% |
+44,281
| New | +$154K |
|
971
Simplify Short Term Treasury Futures Strategy ETF
TUA
$644M
| $154K | ﹤0.01% |
6,702
-21,083
| -76% | -$484K |
|
972
Annexon
ANNX
$280M
| $152K | ﹤0.01% |
+25,830
| New | +$152K |
|
|
CRON
973
Cronos Group
CRON
$988M
| $152K | ﹤0.01% |
+69,730
| New | +$152K |
|
974
AdvisorShares MSOS 2X Daily ETF
MSOX
$45.5M
| $152K | ﹤0.01% |
3,249
+2,781
| +594% | +$130K |
|
975
NextDecade
NEXT
$2.01B
| $152K | ﹤0.01% |
32,365
-177,945
| -85% | -$836K |
|