$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 (2015-09-28), losing -18.0%. The number of shares
that changed hands was 52,292,776, or about 2 times the average daily
volume in the stock.
The closing price was $6.97, amounting to a market cap of $2,200,000,000,
about -79.16% off the highest price in the last 12 months. The stock has
been trading at a range between $6.76 and $33.45.
SUNE is in the Semiconductors industry, part of the Technology sector.