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 | |
|---|---|---|---|---|---|---|
1051
AnaptysBio
ANAB
$649M
| $114K | ﹤0.01% |
+3,423
| New | +$114K |
|
1052
Red Robin
RRGB
$122M
| $113K | ﹤0.01% |
+25,723
| New | +$113K |
|
1053
Turning Point Brands
TPB
$1.81B
| $113K | ﹤0.01% |
+2,639
| New | +$113K |
|
1054
Zevra Therapeutics
ZVRA
$446M
| $113K | ﹤0.01% |
16,380
-52,817
| -76% | -$364K |
|
1055
Adtran
ADTN
$849M
| $112K | ﹤0.01% |
+18,971
| New | +$112K |
|
1056
BCB Bancorp
BCBP
$152M
| $112K | ﹤0.01% |
9,090
+2,392
| +36% | +$29.5K |
|
1057
Carter Bankshares
CARE
$453M
| $112K | ﹤0.01% |
6,492
+5,923
| +1,041% | +$102K |
|
1058
Antero Midstream
AM
$8.85B
| $111K | ﹤0.01% |
+7,382
| New | +$111K |
|
|
BHR
1059
Braemar Hotels & Resorts
BHR
$205M
| $110K | ﹤0.01% |
35,704
-103,648
| -74% | -$319K |
|
1060
TopBuild
BLD
$12B
| $110K | ﹤0.01% |
271
+5
| +2% | +$2.03K |
|
1061
Element Solutions
ESI
$6.37B
| $110K | ﹤0.01% |
4,070
-10,738
| -73% | -$290K |
|
1062
Ring Energy
REI
$211M
| $110K | ﹤0.01% |
69,035
+26,984
| +64% | +$43K |
|
|
CMRC
1063
Commerce.com, Inc. Series 1 Common Stock
CMRC
$376M
| $109K | ﹤0.01% |
+18,711
| New | +$109K |
|
1064
GoPro
GPRO
$316M
| $109K | ﹤0.01% |
80,375
+30,618
| +62% | +$41.5K |
|
1065
Nuvation Bio
NUVB
$1.15B
| $109K | ﹤0.01% |
47,697
+40,641
| +576% | +$92.9K |
|
1066
Invesco Aerospace & Defense ETF
PPA
$6.31B
| $109K | ﹤0.01% |
952
+252
| +36% | +$28.9K |
|
1067
Direxion Daily Aerospace & Defense Bull 3X Shares
DFEN
$336M
| $108K | ﹤0.01% |
+3,035
| New | +$108K |
|
1068
LifeVantage
LFVN
$149M
| $108K | ﹤0.01% |
+8,964
| New | +$108K |
|
1069
PVH
PVH
$3.95B
| $108K | ﹤0.01% |
+1,077
| New | +$108K |
|
1070
iShares MSCI Japan Small-Cap ETF
SCJ
$150M
| $108K | ﹤0.01% |
1,373
+985
| +254% | +$77.5K |
|
1071
Veeco
VECO
$1.54B
| $108K | ﹤0.01% |
+3,267
| New | +$108K |
|
1072
ProShares Ultra Bitcoin ETF
BITU
$1.17B
| $108K | ﹤0.01% |
4,191
-705
| -14% | -$18.2K |
|
1073
Madison Square Garden
MSGS
$5.09B
| $107K | ﹤0.01% |
+518
| New | +$107K |
|
1074
AMN Healthcare
AMN
$727M
| $106K | ﹤0.01% |
+2,503
| New | +$106K |
|
1075
Fossil Group
FOSL
$167M
| $106K | ﹤0.01% |
90,896
+47,704
| +110% | +$55.6K |
|