$ALRM is one of biggest losers #stocks today. read more:

Alarm.com Holdings, Inc. (symbol: ALRM) was one of the worst losers of the
trading day today (2016-08-16), losing -9.02%. The number of shares that
changed hands was 1,401,604, or about 7 times the average daily volume in
the stock.
The closing price was $29.96, amounting to a market cap of $1,370,000,000,
about -9.57% off the highest price in the last 12 months. The stock has
been trading at a range between $10.26 and $33.13.
ALRM is in the n/a industry, part of the n/a sector.