The stock of Sociedad Quimica Y Minera de Chile S.A. ADR (SQM) has seen a -6.73% decrease in the past week, with a -11.15% drop in the past month, and a -22.17% decrease in the past quarter. The volatility ratio for the week is 3.06%, and the volatility levels for the past 30 days are at 2.68% for S