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
|
+$216M |
| 2 |
Apple
AAPL
|
+$159M |
| 3 |
Broadcom
AVGO
|
+$128M |
| 4 |
Booking.com
BKNG
|
+$62.2M |
| 5 |
SPDR S&P 500 ETF Trust
SPY
|
+$61.9M |
Top Sells
| 1 |
iShares 20+ Year Treasury Bond ETF
TLT
|
+$141M |
| 2 |
Amazon
AMZN
|
+$53.1M |
| 3 |
TSMC
TSM
|
+$45.7M |
| 4 |
Netflix
NFLX
|
+$45.3M |
| 5 |
Pfizer
PFE
|
+$38.3M |
Sector Composition
| 1 | Technology | 34.74% |
| 2 | Communication Services | 9% |
| 3 | Consumer Discretionary | 8.67% |
| 4 | Healthcare | 8.07% |
| 5 | Financials | 6.4% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
|
JBS
876
JBS N.V.
JBS
$35.2B
| $230K | ﹤0.01% |
+15,756
| New | +$230K |
|
877
Gran Tierra Energy
GTE
$138M
| $229K | ﹤0.01% |
48,063
+43,684
| +998% | +$208K |
|
878
Kanzhun
BZ
$11.3B
| $228K | ﹤0.01% |
+12,810
| New | +$228K |
|
879
Omnicell
OMCL
$1.52B
| $228K | ﹤0.01% |
7,786
+4,990
| +178% | +$146K |
|
880
Skywest
SKYW
$4.38B
| $227K | ﹤0.01% |
2,205
-2,210
| -50% | -$228K |
|
881
Clarivate
CLVT
$2.94B
| $226K | ﹤0.01% |
52,739
+45,001
| +582% | +$193K |
|
882
Esperion Therapeutics
ESPR
$550M
| $226K | ﹤0.01% |
230,463
+83,722
| +57% | +$82.1K |
|
|
YETH
883
Roundhill Ether Covered Call Strategy ETF
YETH
$107M
| $226K | ﹤0.01% |
9,066
+7,351
| +429% | +$183K |
|
884
First Watch Restaurant Group
FWRG
$1.06B
| $224K | ﹤0.01% |
+14,007
| New | +$224K |
|
885
Tradr TSLA Bear Daily ETF
TSLQ
$246M
| $223K | ﹤0.01% |
+12,232
| New | +$223K |
|
886
Babcock & Wilcox
BW
$251M
| $222K | ﹤0.01% |
231,544
+224,453
| +3,165% | +$215K |
|
887
Celcuity
CELC
$2.4B
| $222K | ﹤0.01% |
+16,642
| New | +$222K |
|
888
Ambac
AMBC
$404M
| $221K | ﹤0.01% |
31,219
-99,452
| -76% | -$704K |
|
889
IAC Inc
IAC
$2.93B
| $221K | ﹤0.01% |
+5,937
| New | +$221K |
|
890
Matthews International
MATW
$767M
| $220K | ﹤0.01% |
9,236
+9,034
| +4,472% | +$215K |
|
891
Navitas Semiconductor
NVTS
$1.29B
| $219K | ﹤0.01% |
33,470
-73,064
| -69% | -$478K |
|
892
Regal Rexnord
RRX
$9.61B
| $219K | ﹤0.01% |
1,514
+1,158
| +325% | +$168K |
|
893
Atea Pharmaceuticals
AVIR
$261M
| $218K | ﹤0.01% |
+60,584
| New | +$218K |
|
894
ProShares Ultra Gold
UGL
$739M
| $217K | ﹤0.01% |
6,285
-11,055
| -64% | -$382K |
|
895
Fulgent Genetics
FLGT
$679M
| $215K | ﹤0.01% |
10,821
+8,855
| +450% | +$176K |
|
896
GoodRx Holdings
GDRX
$1.46B
| $215K | ﹤0.01% |
43,293
+12,779
| +42% | +$63.5K |
|
897
Teucrium Soybean Fund
SOYB
$25.4M
| $211K | ﹤0.01% |
9,731
+7,151
| +277% | +$155K |
|
898
Designer Brands
DBI
$226M
| $210K | ﹤0.01% |
88,521
-13,689
| -13% | -$32.5K |
|
899
Tradr 1.25X NVDA Bear Daily ETF
NVDS
$48.8M
| $210K | ﹤0.01% |
14,538
+5,465
| +60% | +$78.9K |
|
900
MBIA
MBI
$384M
| $209K | ﹤0.01% |
48,183
-26,348
| -35% | -$114K |
|