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

Antero Midstream Partners LP Co (symbol: AM) was one of the worst losers of
the trading day today (2016-03-25), losing -12.86%. The number of shares
that changed hands was 6,348,217, or about 11 times the average daily
volume in the stock.
The closing price was $21.76, amounting to a market cap of $3,830,000,000,
about -26.88% off the highest price in the last 12 months. The stock has
been trading at a range between $16.47 and $29.76.
AM is in the Natural Gas Distribution industry, part of the Public
Utilities sector. It first went public in 2014.
Looking at its valuation, the stock is now trading at 750.34 times earnings.