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

Argo Group International Holdin (symbol: AGII) was one of the worst losers
of the trading day today (2016-05-30), losing -8.8%. The number of shares
that changed hands was 96,011, or about 1 times the average daily volume in
the stock.
The closing price was $52.86, amounting to a market cap of $1,600,000,000,
about -20.39% off the highest price in the last 12 months. The stock has
been trading at a range between $45.7 and $66.4.
AGII is in the Specialty Insurers industry, part of the Finance sector.
Looking at its valuation, the stock is now trading at 12.51 times earnings.