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

Southwestern Energy Company Com (symbol: SWN) was one of the worst losers
of the trading day today (2017-01-03), losing -7.86%. The number of shares
that changed hands was 23,386,096, or about 1 times the average daily
volume in the stock.
The closing price was $9.97, amounting to a market cap of $4,870,000,000,
about -36.05% off the highest price in the last 12 months. The stock has
been trading at a range between $5.3 and $15.59.
SWN is in the Oil & Gas Production industry, part of the Energy sector.