What a Stock-Price Divergence Reveals About Climate Policy and Risk

The Ukraine invasion and the ensuing energy crunch show clearly how important it is to move off fossil fuels and toward renewables.

Or, on the contrary: The invasion is yet another distraction from climate policy, delaying the transition away from fossil fuels and leading to a rise in emissions.

Welcome to the endless cycle of debate over whether or not Russian President Vladimir Putin’s war of choice will be the much-needed push to jumpstart climate policy around the world. It splits neatly between so-called activists focused on the “should” or “ought” versus the often self-styled realists espousing “careful,” “balanced” views. It also apparently splits sharply between Europe and the United States.

A team of researchers at the University of Zurich and the Swiss Finance Institute tackled the question by looking at companies’ stock prices. The results are striking. Stocks of U.S. companies deemed to be most affected by what the researchers call “climate transition risk” soared after Putin’s invasion, while those of European companies did not — or, if anything, fell slightly.

The only cogent interpretation of these results is that investors expected the Ukraine invasion to have very different effects on climate policy in the two regions. In Europe, it would mean a continuation of the clean energy transition, possibly speeding things up. In the U.S., meanwhile, investors expected the war to slow down the transition even further, bringing a renewed emphasis on domestic oil and gas extraction.

To lend more credence to these results, the researchers looked to companies most exposed to physical climate risk. That underlying risk did not change due to the invasion, so their stock prices should not have either. And indeed, they didn’t.