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

LifeLock, Inc. Common Stock (symbol: LOCK) was one of the biggest winners
of the trading day today (2015-07-22), gaining 9.2%. The number of shares
that changed hands was 35,982,032, or about 20.3 times the average daily
volume in the stock.
The closing price was $8.9, amounting to a market cap of $839,890,000,
about -53.52% off the highest price in the last 12 months. The stock has
been trading at a range between $7.7 and $19.15.
LOCK is in the EDP Services industry, part of the Technology sector. It
first went public in 2012.