$POM is one of biggest losers #stocks today. read more:

PEPCO Holdings, Inc Common Stoc (symbol: POM) was one of the worst losers
of the trading day today (2016-03-01), losing -12.87%. The number of shares
that changed hands was 27,517,665, or about 13 times the average daily
volume in the stock.
The closing price was $22.81, amounting to a market cap of $5,800,000,000,
about -16.57% off the highest price in the last 12 months. The stock has
been trading at a range between $21.61 and $27.34.
POM is in the Power Generation industry, part of the Public Utilities
sector.
Looking at its valuation, the stock is now trading at 17.75 times earnings.