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
|
+$114M |
| 2 |
Citigroup
C
|
+$77M |
| 3 |
Broadcom
AVGO
|
+$53M |
| 4 |
Pinduoduo
PDD
|
+$49.7M |
| 5 |
Intel
INTC
|
+$44.5M |
Top Sells
| 1 |
Energy Select Sector SPDR Fund
XLE
|
+$92.5M |
| 2 |
Pfizer
PFE
|
+$67.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Direxion Daily Semiconductor Bull 3X Shares
SOXL
|
+$44.9M |
| 5 |
PayPal
PYPL
|
+$44.4M |
Sector Composition
| 1 | Technology | 27.91% |
| 2 | Consumer Discretionary | 14.92% |
| 3 | Healthcare | 10.74% |
| 4 | Financials | 10.11% |
| 5 | Materials | 6.23% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
526
Deere & Co
DE
$127B
| $738K | ﹤0.01% |
1,976
-10,018
| -84% | -$3.74M |
|
527
Shell
SHEL
$211B
| $732K | ﹤0.01% |
+10,143
| New | +$732K |
|
528
Sociedad Química y Minera de Chile
SQM
$12B
| $729K | ﹤0.01% |
17,901
+15,785
| +746% | +$643K |
|
529
iShares MSCI India ETF
INDA
$9.38B
| $727K | ﹤0.01% |
13,051
-120,065
| -90% | -$6.69M |
|
530
Shoals Technologies Group
SHLS
$1.15B
| $727K | ﹤0.01% |
116,521
+69,050
| +145% | +$431K |
|
531
ProShares Short Bitcoin Strategy ETF
BITI
$74.7M
| $725K | ﹤0.01% |
17,151
-7,380
| -30% | -$312K |
|
532
ProShares Short VIX Short-Term Futures ETF
SVXY
$251M
| $722K | ﹤0.01% |
+11,766
| New | +$722K |
|
533
Transmedics
TMDX
$3.67B
| $718K | ﹤0.01% |
4,771
+2,220
| +87% | +$334K |
|
534
Valkyrie ETF Trust II CoinShares Bitcoin Mining ETF
WGMI
$199M
| $712K | ﹤0.01% |
33,678
-7,174
| -18% | -$152K |
|
535
Recursion Pharmaceuticals
RXRX
$1.98B
| $710K | ﹤0.01% |
94,772
+58,556
| +162% | +$439K |
|
|
MTTR
536
DELISTED
Matterport, Inc. Class A Common Stock
MTTR
| $704K | ﹤0.01% |
157,534
-1,755
| -1% | -$7.84K |
|
537
Invesco DB Commodity Index Tracking Fund
DBC
$1.28B
| $703K | ﹤0.01% |
30,286
-10,243
| -25% | -$238K |
|
538
Rogers Corp
ROG
$1.44B
| $702K | ﹤0.01% |
5,823
+303
| +5% | +$36.5K |
|
539
Zions Bancorporation
ZION
$8.56B
| $702K | ﹤0.01% |
16,195
-98,933
| -86% | -$4.29M |
|
540
American Water Works
AWK
$27B
| $698K | ﹤0.01% |
5,407
+2,699
| +100% | +$348K |
|
541
Labcorp
LH
$22.7B
| $697K | ﹤0.01% |
3,426
-1,617
| -32% | -$329K |
|
|
BBBY
542
Bed Bath & Beyond, Inc.
BBBY
$592M
| $694K | ﹤0.01% |
+53,094
| New | +$694K |
|
543
WD-40
WDFC
$2.85B
| $694K | ﹤0.01% |
3,160
+726
| +30% | +$159K |
|
544
Axsome Therapeutics
AXSM
$6.19B
| $693K | ﹤0.01% |
8,620
-6,766
| -44% | -$544K |
|
545
Crane Co
CR
$10.5B
| $693K | ﹤0.01% |
+4,784
| New | +$693K |
|
546
Array Technologies
ARRY
$1.25B
| $692K | ﹤0.01% |
+67,507
| New | +$692K |
|
547
Silicon Motion
SIMO
$2.84B
| $692K | ﹤0.01% |
8,546
+5,226
| +157% | +$423K |
|
548
Amplify Cybersecurity ETF
HACK
$2.32B
| $688K | ﹤0.01% |
10,638
-27,113
| -72% | -$1.75M |
|
549
BioMarin Pharmaceuticals
BMRN
$10.5B
| $687K | ﹤0.01% |
8,351
-9,287
| -53% | -$764K |
|
550
Melco Resorts & Entertainment
MLCO
$3.8B
| $683K | ﹤0.01% |
91,625
-15,691
| -15% | -$117K |
|