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

SunEdison, Inc. Common Stock (symbol: SUNE) was one of the worst losers of
the trading day today (2015-10-21), losing -13.01%. The number of shares
that changed hands was 30,732,429, or about 1 times the average daily
volume in the stock.
The closing price was $7.82, amounting to a market cap of $2,460,000,000,
about -76.62% off the highest price in the last 12 months. The stock has
been trading at a range between $6.56 and $33.45.
SUNE is in the Semiconductors industry, part of the Technology sector.