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

Iridium Communications Inc (symbol: IRDM) was one of the biggest winners of
the trading day today (2017-01-03), gaining 9.9%. The number of shares that
changed hands was 1,593,168, or about 2.0 times the average daily volume in
the stock.
The closing price was $10.55, amounting to a market cap of $1,010,000,000,
about -5.38% off the highest price in the last 12 months. The stock has
been trading at a range between $6.14 and $11.15.
IRDM is in the Telecommunications Equipment industry, part of the Consumer
Durables sector.
Looking at its valuation, the stock is now trading at 555.26 times earnings.