How to read these

Four sectors, one baseline.

Each index is an equal-weighted composite of representative public companies, rebased to 100 on January 1, 2025, and updated weekly.

The indices

GNEI composite indices.

Weekly composite charts, rebased to 100 on January 1, 2025.

Index 01

Old Nuclear

Established large-scale reactor operators and legacy nuclear utilities.

EQUAL-WEIGHTED · BASELINE 100 @ 01 JAN 2025 · WEEKLY
Index 02

New Nuclear

Small modular reactor and advanced-reactor developers building the next generation.

EQUAL-WEIGHTED · BASELINE 100 @ 01 JAN 2025 · WEEKLY
Index 03

New Energy

A broader clean-energy basket — solar, wind, storage, and hydrogen — outside nuclear.

EQUAL-WEIGHTED · BASELINE 100 @ 01 JAN 2025 · WEEKLY
Index 04

New Nuclear+

New Nuclear plus the enabling supply chain — fuel, components, construction, and services.

EQUAL-WEIGHTED · BASELINE 100 @ 01 JAN 2025 · WEEKLY