Edison International and other utilities are expected to trade at a wider discount to the benchmark S&P 500 utilities index than before as wildfires burning across California underscore the risks of natural disasters on their businesses,

Fear and uncertainty surrounding the wildfires in California appear to be weighing on shares of Edison International, whose Southern California Edison is the power utility for the areas directly surrounding the city of Los Angeles.

The onslaught of wildfires in Los Angeles and surrounding southern California communities has caused a dramatic drop in the stock of Edison International, the utility that serves much of the affected area, affecting the utility’s 401 (k) plan investors who hold company stock.

Edison International’s shares and bonds fell on Wednesday as a wildfire raged across the Los Angeles region, close to areas served by the company’s utility unit.

Edison International (NYSE:EIX) settled -10.2% on Wednesday, after plunging as much as 13% to its lowest level in nine months, on fear and uncertainty over the wildfires in southern California; SoCal Edison is the power utility for the areas directly surrounding the city of Los Angeles.