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 |
Apple
AAPL
|
+$586M |
| 2 |
Strategy Inc Common Stock Class A
MSTR
|
+$82.5M |
| 3 |
Intel
INTC
|
+$40.4M |
| 4 |
Invesco QQQ Trust
QQQ
|
+$39.4M |
| 5 |
Uber
UBER
|
+$36.3M |
Top Sells
| 1 |
NVIDIA
NVDA
|
+$130M |
| 2 |
Pinduoduo
PDD
|
+$95.7M |
| 3 |
Boeing
BA
|
+$56.2M |
| 4 |
KraneShares CSI China Internet ETF
KWEB
|
+$40.7M |
| 5 |
Microsoft
MSFT
|
+$40.5M |
Sector Composition
| 1 | Technology | 34.29% |
| 2 | Consumer Discretionary | 11.38% |
| 3 | Healthcare | 9.65% |
| 4 | Financials | 6.33% |
| 5 | Communication Services | 5.52% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
701
California Resources
CRC
$4.27B
| $434K | ﹤0.01% |
8,365
+5,524
| +194% | +$287K |
|
702
Coursera
COUR
$1.96B
| $431K | ﹤0.01% |
50,807
-693
| -1% | -$5.88K |
|
|
TOPT
703
iShares Top 20 U.S. Stocks ETF
TOPT
$274M
| $430K | ﹤0.01% |
+16,511
| New | +$430K |
|
704
Invesco CurrencyShares Japanese Yen Trust
FXY
$562M
| $429K | ﹤0.01% |
7,327
-64,644
| -90% | -$3.78M |
|
705
Fastly
FSLY
$1.13B
| $428K | ﹤0.01% |
45,356
-71,973
| -61% | -$679K |
|
706
Madison Square Garden
MSGS
$4.96B
| $427K | ﹤0.01% |
1,895
+1,377
| +266% | +$310K |
|
707
Semler Scientific
SMLR
$416M
| $426K | ﹤0.01% |
+7,905
| New | +$426K |
|
708
Globus Medical
GMED
$7.98B
| $424K | ﹤0.01% |
5,137
+2,849
| +125% | +$235K |
|
709
BridgeBio Pharma
BBIO
$10.2B
| $418K | ﹤0.01% |
15,256
-17,243
| -53% | -$472K |
|
710
Sun Communities
SUI
$16.3B
| $417K | ﹤0.01% |
+3,394
| New | +$417K |
|
711
American Financial Group
AFG
$11.5B
| $416K | ﹤0.01% |
+3,040
| New | +$416K |
|
712
SIGA Technologies
SIGA
$627M
| $413K | ﹤0.01% |
68,869
+34,072
| +98% | +$204K |
|
713
YieldMax TSLA Option Income Strategy ETF
TSLY
$1.14B
| $413K | ﹤0.01% |
+28,995
| New | +$413K |
|
714
OneMain Financial
OMF
$7.23B
| $411K | ﹤0.01% |
+7,897
| New | +$411K |
|
715
HealthEquity
HQY
$8.01B
| $409K | ﹤0.01% |
4,273
+1,137
| +36% | +$109K |
|
716
Cemex
CX
$13.6B
| $406K | ﹤0.01% |
+72,032
| New | +$406K |
|
717
SL Green Realty
SLG
$4.21B
| $405K | ﹤0.01% |
+5,974
| New | +$405K |
|
718
B&G Foods
BGS
$366M
| $404K | ﹤0.01% |
58,757
+20,850
| +55% | +$143K |
|
719
FS KKR Capital
FSK
$5B
| $402K | ﹤0.01% |
18,553
+4,411
| +31% | +$95.6K |
|
720
Direxion Daily 20+ Year Treasury Bull 3X Shares
TMF
$5.41B
| $402K | ﹤0.01% |
10,077
-120,262
| -92% | -$4.8M |
|
721
TransAlta
TAC
$3.66B
| $401K | ﹤0.01% |
28,360
-35,239
| -55% | -$498K |
|
|
BTC
722
Grayscale Bitcoin Mini Trust ETF
BTC
$4.86B
| $400K | ﹤0.01% |
+9,564
| New | +$400K |
|
|
VRNA
723
Verona Pharma
VRNA
$9.19B
| $399K | ﹤0.01% |
8,601
-23,629
| -73% | -$1.1M |
|
724
FTAI Infrastructure
FIP
$460M
| $398K | ﹤0.01% |
+54,922
| New | +$398K |
|
725
Nova
NVMI
$8.22B
| $398K | ﹤0.01% |
+2,024
| New | +$398K |
|