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 | |
|---|---|---|---|---|---|---|
876
iHeartMedia
IHRT
$354M
| $204K | ﹤0.01% |
110,551
+42,608
| +63% | +$78.6K |
|
877
Mueller Industries
MLI
$10.9B
| $203K | ﹤0.01% |
2,742
+2,718
| +11,325% | +$201K |
|
878
Dave & Buster's
PLAY
$797M
| $203K | ﹤0.01% |
5,990
-16,397
| -73% | -$556K |
|
879
uniQure
QURE
$928M
| $202K | ﹤0.01% |
+40,992
| New | +$202K |
|
880
Invesco DB US Dollar Index Bullish Fund
UUP
$161M
| $202K | ﹤0.01% |
+7,203
| New | +$202K |
|
881
Sturm, Ruger & Co
RGR
$600M
| $199K | ﹤0.01% |
+4,782
| New | +$199K |
|
882
Martin Marietta Materials
MLM
$38.1B
| $198K | ﹤0.01% |
369
-1,225
| -77% | -$657K |
|
883
Tetra Tech
TTEK
$9.52B
| $198K | ﹤0.01% |
+4,209
| New | +$198K |
|
884
Globant
GLOB
$2.58B
| $197K | ﹤0.01% |
+995
| New | +$197K |
|
885
Arvinas
ARVN
$572M
| $196K | ﹤0.01% |
+7,984
| New | +$196K |
|
886
Clearway Energy Class C
CWEN
$3.38B
| $196K | ﹤0.01% |
6,400
+4,740
| +286% | +$145K |
|
887
PagerDuty
PD
$1.54B
| $196K | ﹤0.01% |
+10,588
| New | +$196K |
|
888
Amplify CWP Enhanced Dividend Income ETF
DIVO
$5.09B
| $194K | ﹤0.01% |
+4,734
| New | +$194K |
|
889
Direxion Daily Energy Bull 2X Shares
ERX
$224M
| $193K | ﹤0.01% |
3,260
-173
| -5% | -$10.2K |
|
890
Listed Funds Trust Roundhill Magnificent Seven ETF
MAGS
$2.78B
| $193K | ﹤0.01% |
4,064
-3,319
| -45% | -$158K |
|
891
American Coastal Insurance
ACIC
$539M
| $192K | ﹤0.01% |
17,044
-11,188
| -40% | -$126K |
|
|
LGF.A
892
DELISTED
Lions Gate Entertainment Corp. Class A Voting Shares
LGF.A
| $192K | ﹤0.01% |
+24,541
| New | +$192K |
|
893
Brookfield Renewable
BEPC
$6.08B
| $191K | ﹤0.01% |
5,859
+5,566
| +1,900% | +$181K |
|
894
Brookfield Infrastructure Partners
BIP
$14.3B
| $191K | ﹤0.01% |
5,453
-1,754
| -24% | -$61.4K |
|
895
Camtek
CAMT
$3.84B
| $191K | ﹤0.01% |
2,402
-10,692
| -82% | -$850K |
|
896
James River Group
JRVR
$248M
| $190K | ﹤0.01% |
+30,420
| New | +$190K |
|
897
National Storage Affiliates Trust
NSA
$2.49B
| $188K | ﹤0.01% |
+3,905
| New | +$188K |
|
898
Red Cat Holdings
RCAT
$1.1B
| $188K | ﹤0.01% |
74,289
+66,272
| +827% | +$168K |
|
899
Cantaloupe
CTLP
$792M
| $187K | ﹤0.01% |
25,285
-2,800
| -10% | -$20.7K |
|
900
Freshworks
FRSH
$3.76B
| $187K | ﹤0.01% |
16,332
-78,956
| -83% | -$904K |
|