From BI: This morning, when
York markets opened at 9:30 AM, shares of American
Electric Power and Nextera Energy, two big electric utilities, briefly plunged
54% and 62% respectively. Both companies are in the S&P 500, and the flash crash
brought the utilities sub-sector of the index down nearly 8% overall.
The massive moves resulted in a trading halt in shares of both companies.
Now, AEP is only down 1.5%, and NEE is down 1.8%.