$OLED is one of biggest winner #stocks today. read more:

Universal Display Corporation (symbol: OLED) was one of the biggest winners
of the trading day today (2015-12-30), gaining 6.99%. The number of shares
that changed hands was 1,577,836, or about 2.3 times the average daily
volume in the stock.
The closing price was $56.02, amounting to a market cap of $2,620,000,000,
about -3.3% off the highest price in the last 12 months. The stock has been
trading at a range between $25.61 and $57.93.
OLED is in the Electrical Products industry, part of the Capital Goods
sector.
Looking at its valuation, the stock is now trading at 265.5 times earnings.