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

LDR Holding Corporation (symbol: LDRH) was one of the worst losers of the
trading day today (2016-01-22), losing -11.9%. The number of shares that
changed hands was 2,045,939, or about 5 times the average daily volume in
the stock.
The closing price was $18.915, amounting to a market cap of $549,390,000,
about -59.858% off the highest price in the last 12 months. The stock has
been trading at a range between $18.287 and $47.12.
LDRH is in the Medical/Dental Instruments industry, part of the Health Care
sector. It first went public in 2013.