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

Energy Recovery, Inc. (symbol: ERII) was one of the worst losers of the
trading day today (2016-05-24), losing -13.29%. The number of shares that
changed hands was 3,320,899, or about 6 times the average daily volume in
the stock.
The closing price was $9.66, amounting to a market cap of $505,550,000,
about -27.64% off the highest price in the last 12 months. The stock has
been trading at a range between $2.07 and $13.35.
ERII is in the Industrial Machinery/Components industry, part of the
Technology sector. It first went public in 2008.