Key Takeaways Shares of Edison International plunged Wednesday as its Southern California Edison subsidiary was forced to shut off power to thousands of customers because of the Los Angeles-area wildfires.

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.

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.