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 |
Energy Select Sector SPDR Fund
XLE
|
+$93.9M |
| 2 |
Pfizer
PFE
|
+$89.5M |
| 3 |
Boeing
BA
|
+$66.7M |
| 4 |
Intel
INTC
|
+$60.2M |
| 5 |
Meta Platforms (Facebook)
META
|
+$52.5M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$146M |
| 2 |
Alphabet (Google) Class A
GOOGL
|
+$109M |
| 3 |
Alibaba
BABA
|
+$81.8M |
| 4 |
Walt Disney
DIS
|
+$80.2M |
| 5 |
Citigroup
C
|
+$55.3M |
Sector Composition
| 1 | Technology | 19.03% |
| 2 | Healthcare | 13.86% |
| 3 | Consumer Discretionary | 12.44% |
| 4 | Industrials | 8.48% |
| 5 | Communication Services | 7.95% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
976
Douglas Emmett
DEI
$2.72B
| $202K | ﹤0.01% |
14,625
+6,598
| +82% | +$91.1K |
|
977
Ormat Technologies
ORA
$5.59B
| $202K | ﹤0.01% |
+3,066
| New | +$202K |
|
978
Royalty Pharma
RPRX
$15.8B
| $202K | ﹤0.01% |
6,672
-27,943
| -81% | -$846K |
|
979
SI-BONE Inc
SIBN
$632M
| $202K | ﹤0.01% |
12,343
+11,991
| +3,407% | +$196K |
|
980
Cassava Sciences
SAVA
$112M
| $201K | ﹤0.01% |
9,938
+9,085
| +1,065% | +$184K |
|
981
ProShares UltraShort S&P500
SDS
$450M
| $201K | ﹤0.01% |
+8,087
| New | +$201K |
|
982
Cardiff Oncology
CRDF
$136M
| $200K | ﹤0.01% |
+37,591
| New | +$200K |
|
983
Flex
FLEX
$21.8B
| $200K | ﹤0.01% |
7,021
-43,929
| -86% | -$1.25M |
|
984
Merchants Bancorp
MBIN
$1.49B
| $200K | ﹤0.01% |
4,632
-2,383
| -34% | -$103K |
|
985
WisdomTree India Earnings Fund ETF
EPI
$2.91B
| $199K | ﹤0.01% |
4,589
-5,164
| -53% | -$224K |
|
986
VanEck Agribusiness ETF
MOO
$620M
| $199K | ﹤0.01% |
+2,649
| New | +$199K |
|
987
Perella Weinberg Partners
PWP
$1.48B
| $199K | ﹤0.01% |
+14,132
| New | +$199K |
|
988
Lennox International
LII
$19B
| $198K | ﹤0.01% |
407
+326
| +402% | +$159K |
|
989
First Trust Natural Gas ETF
FCG
$325M
| $197K | ﹤0.01% |
7,215
+1,455
| +25% | +$39.7K |
|
990
Valaris
VAL
$3.59B
| $197K | ﹤0.01% |
+2,627
| New | +$197K |
|
991
Ero Copper
ERO
$1.77B
| $196K | ﹤0.01% |
10,196
-6,157
| -38% | -$118K |
|
992
WK Kellogg Co
KLG
$1.99B
| $194K | ﹤0.01% |
+10,360
| New | +$194K |
|
993
Odyssey Marine Exploration
OMEX
$82.7M
| $194K | ﹤0.01% |
51,033
-134,240
| -72% | -$510K |
|
994
Blend Labs
BLND
$1.04B
| $193K | ﹤0.01% |
59,589
+6,138
| +11% | +$19.9K |
|
995
iShares US Oil & Gas Exploration & Production ETF
IEO
$457M
| $192K | ﹤0.01% |
1,800
+682
| +61% | +$72.7K |
|
996
AerSale
ASLE
$401M
| $191K | ﹤0.01% |
26,702
-49,659
| -65% | -$355K |
|
997
iShares Global Timber & Forestry ETF
WOOD
$244M
| $191K | ﹤0.01% |
2,274
+1,872
| +466% | +$157K |
|
998
KLA
KLAC
$138B
| $190K | ﹤0.01% |
+272
| New | +$190K |
|
999
MidCap Financial Investment
MFIC
$1.15B
| $190K | ﹤0.01% |
+12,659
| New | +$190K |
|
1000
TTEC Holdings
TTEC
$180M
| $190K | ﹤0.01% |
18,360
+18,013
| +5,191% | +$186K |
|