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 |
SPDR Dow Jones Industrial Average ETF Trust
DIA
|
$32.1M |
| 2 |
PARA
Paramount Global Class B
PARA
|
$23.3M |
| 3 |
Pinduoduo
PDD
|
$17.3M |
| 4 |
Pfizer
PFE
|
$16.8M |
| 5 |
American Airlines Group
AAL
|
$14.5M |
Top Sells
| 1 |
Amazon
AMZN
|
$64.4M |
| 2 |
Alphabet (Google) Class C
GOOG
|
$38.1M |
| 3 |
AutoZone
AZO
|
$32.2M |
| 4 |
SPDR S&P 500 ETF Trust
SPY
|
$25.3M |
| 5 |
Apple
AAPL
|
$22.5M |
Sector Composition
| 1 | Technology | 20.25% |
| 2 | Consumer Discretionary | 15.22% |
| 3 | Healthcare | 10.03% |
| 4 | Financials | 9.2% |
| 5 | Industrials | 9.11% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
676
Howmet Aerospace
HWM
$72.4B
| $501K | ﹤0.01% |
15,604
-25,366
| -62% | -$814K |
|
677
Wabtec
WAB
$32.6B
| $500K | ﹤0.01% |
6,321
+1,984
| +46% | +$157K |
|
678
Sphere Entertainment
SPHR
$1.84B
| $498K | ﹤0.01% |
6,091
+1,628
| +36% | +$133K |
|
|
GNOG
679
DELISTED
Golden Nugget Online Gaming, Inc. Class A Common Stock
GNOG
| $497K | ﹤0.01% |
36,876
-2,189
| -6% | -$29.5K |
|
680
Fortune Brands Innovations
FBIN
$7.27B
| $496K | ﹤0.01% |
6,066
-245
| -4% | -$20K |
|
681
Cognex
CGNX
$7.53B
| $494K | ﹤0.01% |
+5,958
| New | +$494K |
|
682
GrafTech
EAF
$237M
| $494K | ﹤0.01% |
4,046
+231
| +6% | +$28.2K |
|
683
Jones Lang LaSalle
JLL
$14.8B
| $491K | ﹤0.01% |
+2,747
| New | +$491K |
|
|
VIEW
684
DELISTED
View, Inc. Class A Common Stock
VIEW
| $491K | ﹤0.01% |
1,106
-669
| -38% | -$297K |
|
|
STOR
685
DELISTED
STORE Capital Corporation
STOR
| $491K | ﹤0.01% |
14,658
+2,038
| +16% | +$68.3K |
|
686
Ball Corp
BALL
$13.8B
| $490K | ﹤0.01% |
5,788
+1,334
| +30% | +$113K |
|
|
OTRK
687
DELISTED
Ontrak
OTRK
| $489K | ﹤0.01% |
+167
| New | +$489K |
|
688
Warner Music
WMG
$17.5B
| $489K | ﹤0.01% |
14,268
-25,264
| -64% | -$866K |
|
|
ONEM
689
DELISTED
1Life Healthcare, Inc. Common Stock
ONEM
| $489K | ﹤0.01% |
+12,523
| New | +$489K |
|
690
SPDR Portfolio S&P 500 Value ETF
SPYV
$28B
| $488K | ﹤0.01% |
+12,876
| New | +$488K |
|
691
Hasbro
HAS
$11.1B
| $484K | ﹤0.01% |
5,036
-11,426
| -69% | -$1.1M |
|
|
SII
692
Sprott
SII
$1.75B
| $481K | ﹤0.01% |
12,678
+3,750
| +42% | +$142K |
|
|
UNIT
693
Uniti Group
UNIT
$1.82B
| $481K | ﹤0.01% |
43,625
-29,798
| -41% | -$329K |
|
694
NNN REIT
NNN
$8.1B
| $480K | ﹤0.01% |
+10,894
| New | +$480K |
|
695
iShares Global Healthcare ETF
IXJ
$3.84B
| $477K | ﹤0.01% |
6,202
+1,702
| +38% | +$131K |
|
696
Schrodinger
SDGR
$1.4B
| $477K | ﹤0.01% |
+6,257
| New | +$477K |
|
697
Liberty Latin America Class C
LILAK
$1.57B
| $476K | ﹤0.01% |
36,731
+3,844
| +12% | +$49.8K |
|
|
GMBL
698
DELISTED
Esports Entertainment Group Inc. Common Stock
GMBL
| $476K | ﹤0.01% |
+1
| New | +$476K |
|
699
AXIS Capital
AXS
$7.67B
| $475K | ﹤0.01% |
9,585
+8,280
| +634% | +$410K |
|
700
Leslie's
LESL
$63.3M
| $475K | ﹤0.01% |
+19,405
| New | +$475K |
|