Callaway Climate Insights

Callaway Climate Insights

Why clean energy stocks are performing so poorly this year

Iran war has skewed energy inflation and led to bigger profits for oil majors

Mark Hulbert's avatar
Mark Hulbert
Sep 30, 2026
∙ Paid

This column is for Callaway Climate Insights subscribers only, but it’s OK to share once in a while. Was it shared with you? Please subscribe.

(Mark Hulbert, an author and longtime investment columnist, is the founder of the Hulbert Financial Digest; his Hulbert Ratings audits investment newsletter returns.)

CHAPEL HILL, N.C. (Callaway Climate Insights) — Clean energy funds haven’t performed as well as they “should” have so far this year.

That’s because they “should” have significantly beaten fossil fuel funds, given that their cost of capital is nearly double that of fossil fuel companies. But try telling that to the stock market. On average, clean and sustainable energy mutual funds and ETFs gained just 4.9% for the first three quarters of this year, according to my calculations, in contrast to 37.2% for the average fossil fuel fund and ETF. (Data through Sep. 29.)

These unexpected results illustrate two important lessons about investing in clean energy.

Keep reading with a 7-day free trial

Subscribe to Callaway Climate Insights to keep reading this post and get 7 days of free access to the full post archives.

Already a paid subscriber? Sign in
© 2026 David Callaway · Privacy ∙ Terms ∙ Collection notice
Start your SubstackGet the app
Substack is the home for great culture