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 | |
|---|---|---|---|---|---|---|
726
Hippo Holdings
HIPO
$919M
| $365K | ﹤0.01% |
21,279
-18,617
| -47% | -$319K |
|
727
IAC Inc
IAC
$2.92B
| $364K | ﹤0.01% |
9,492
+1,313
| +16% | +$50.4K |
|
728
iShares Core MSCI EAFE ETF
IEFA
$153B
| $361K | ﹤0.01% |
+4,970
| New | +$361K |
|
729
Comfort Systems
FIX
$27.2B
| $360K | ﹤0.01% |
1,187
-50
| -4% | -$15.2K |
|
730
Centrus Energy
LEU
$4.16B
| $360K | ﹤0.01% |
8,427
+7,488
| +797% | +$320K |
|
731
Barclays
BCS
$72.7B
| $359K | ﹤0.01% |
33,589
-142,870
| -81% | -$1.53M |
|
732
J.M. Smucker
SJM
$11.8B
| $358K | ﹤0.01% |
+3,284
| New | +$358K |
|
733
Cedar Fair
FUN
$2.22B
| $356K | ﹤0.01% |
+6,551
| New | +$356K |
|
|
BHR
734
Braemar Hotels & Resorts
BHR
$204M
| $355K | ﹤0.01% |
139,352
+129,427
| +1,304% | +$330K |
|
735
Braze
BRZE
$3.4B
| $355K | ﹤0.01% |
9,160
+4,324
| +89% | +$168K |
|
736
Avidity Biosciences
RNA
$5.1B
| $355K | ﹤0.01% |
8,703
-2,303
| -21% | -$93.9K |
|
737
Fulcrum Therapeutics
FULC
$377M
| $354K | ﹤0.01% |
57,133
+26,394
| +86% | +$164K |
|
738
Perimeter Solutions
PRM
$3.27B
| $354K | ﹤0.01% |
45,293
-11,521
| -20% | -$90K |
|
739
CorMedix
CRMD
$979M
| $351K | ﹤0.01% |
81,147
-14,393
| -15% | -$62.3K |
|
740
Global Ship Lease
GSL
$1.12B
| $350K | ﹤0.01% |
+12,191
| New | +$350K |
|
741
Cassava Sciences
SAVA
$104M
| $348K | ﹤0.01% |
28,235
+18,297
| +184% | +$226K |
|
742
Sprott Junior Uranium Miners ETF
URNJ
$355M
| $348K | ﹤0.01% |
14,549
-407
| -3% | -$9.74K |
|
743
PIMCO 25+ Year Zero Coupon US Treasury Index Exchange-Traded Fund
ZROZ
$1.73B
| $348K | ﹤0.01% |
4,643
+4,218
| +992% | +$316K |
|
744
Thomson Reuters
TRI
$78B
| $347K | ﹤0.01% |
2,059
-5,080
| -71% | -$856K |
|
745
Bloomin' Brands
BLMN
$590M
| $345K | ﹤0.01% |
+17,963
| New | +$345K |
|
|
NNDM
746
Nano Dimension
NNDM
$315M
| $345K | ﹤0.01% |
156,863
-63,232
| -29% | -$139K |
|
747
Goodyear
GT
$2.42B
| $344K | ﹤0.01% |
30,368
-116,129
| -79% | -$1.32M |
|
748
American Electric Power
AEP
$58B
| $342K | ﹤0.01% |
3,898
-17,001
| -81% | -$1.49M |
|
749
Fidelity National Financial
FNF
$16.5B
| $341K | ﹤0.01% |
+6,906
| New | +$341K |
|
750
Markel Group
MKL
$24.7B
| $341K | ﹤0.01% |
+217
| New | +$341K |
|