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

Proto Labs, Inc. Common stock (symbol: PRLB) was one of the biggest winners
of the trading day today (2015-07-23), gaining 11.6%. The number of shares
that changed hands was 1,066,876, or about 4.5 times the average daily
volume in the stock.
The closing price was $76.57, amounting to a market cap of $1,980,000,000,
about -12.24% off the highest price in the last 12 months. The stock has
been trading at a range between $54.97 and $87.25.
PRLB is in the Metal Fabrications industry, part of the Capital Goods
sector. It first went public in 2012.
Looking at its valuation, the stock is now trading at 47.56 times earnings.