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 | |
|---|---|---|---|---|---|---|
|
DM
901
DELISTED
Desktop Metal, Inc.
DM
| $250K | ﹤0.01% |
+28,522
| New | +$250K |
|
902
Sprinklr
CXM
$1.9B
| $249K | ﹤0.01% |
+20,339
| New | +$249K |
|
903
Yext
YEXT
$1.09B
| $249K | ﹤0.01% |
41,409
+31,522
| +319% | +$190K |
|
|
AD
904
Array Digital Infrastructure
AD
$4.18B
| $248K | ﹤0.01% |
6,797
-18,691
| -73% | -$682K |
|
905
El Pollo Loco
LOCO
$297M
| $247K | ﹤0.01% |
25,421
-13,980
| -35% | -$136K |
|
906
Match Group
MTCH
$9.27B
| $246K | ﹤0.01% |
6,793
-126,080
| -95% | -$4.57M |
|
|
BCYC
907
Bicycle Therapeutics
BCYC
$480M
| $244K | ﹤0.01% |
+9,830
| New | +$244K |
|
908
Lightwave Logic
LWLG
$542M
| $243K | ﹤0.01% |
52,031
+5,973
| +13% | +$27.9K |
|
909
Malibu Boats
MBUU
$617M
| $243K | ﹤0.01% |
+5,631
| New | +$243K |
|
910
ProShares UltraPro Short 20+ Year Treasury
TTT
$22.5M
| $243K | ﹤0.01% |
3,510
+218
| +7% | +$15.1K |
|
911
AbCellera Biologics
ABCL
$1.35B
| $242K | ﹤0.01% |
53,474
-3,386
| -6% | -$15.3K |
|
912
Allot
ALLT
$452M
| $242K | ﹤0.01% |
107,867
+52,286
| +94% | +$117K |
|
913
Coursera
COUR
$1.91B
| $242K | ﹤0.01% |
+17,300
| New | +$242K |
|
|
HOLI
914
DELISTED
Hollsys Automation Technologies INTERNATIONAL, LTD. COMMON (British Virgin Island)
HOLI
| $241K | ﹤0.01% |
9,426
-4,070
| -30% | -$104K |
|
915
Dolby
DLB
$6.86B
| $240K | ﹤0.01% |
2,869
-6,331
| -69% | -$530K |
|
916
Light & Wonder
LNW
$7.33B
| $238K | ﹤0.01% |
+2,341
| New | +$238K |
|
917
QuickLogic
QUIK
$95.4M
| $238K | ﹤0.01% |
14,891
-981
| -6% | -$15.7K |
|
918
CGI
GIB
$20.6B
| $237K | ﹤0.01% |
2,150
+53
| +3% | +$5.84K |
|
919
GeoPark
GPRK
$308M
| $236K | ﹤0.01% |
24,649
-8,045
| -25% | -$77K |
|
920
VICI Properties
VICI
$34B
| $236K | ﹤0.01% |
+7,938
| New | +$236K |
|
|
SVM
921
Silvercorp Metals
SVM
$1.14B
| $235K | ﹤0.01% |
72,105
+42,763
| +146% | +$139K |
|
922
Vertex
VERX
$4.01B
| $235K | ﹤0.01% |
7,406
+7,056
| +2,016% | +$224K |
|
|
AZPN
923
DELISTED
Aspen Technology Inc
AZPN
| $235K | ﹤0.01% |
1,105
-1,158
| -51% | -$246K |
|
924
Nova
NVMI
$9.18B
| $234K | ﹤0.01% |
1,323
-7,784
| -85% | -$1.38M |
|
925
Amylyx Pharmaceuticals
AMLX
$1.42B
| $233K | ﹤0.01% |
82,107
-47,315
| -37% | -$134K |
|