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

Acuity Brands Inc (symbol: AYI) was one of the biggest winners of the
trading day today (2016-04-06), gaining 13.27%. The number of shares that
changed hands was 1,599,605, or about 2.8 times the average daily volume in
the stock.
The closing price was $254.85, amounting to a market cap of
$11,030,000,000, about -0.11% off the highest price in the last 12 months.
The stock has been trading at a range between $164.36 and $255.14.
AYI is in the Building Products industry, part of the Consumer Durables
sector.
Looking at its valuation, the stock is now trading at 46.42 times earnings.