CSG Systems International Inc. (CSGS) is at an implied volatility extreme high of 83.68% that is greater than 90.69% of past values prior to 10/8/2003 (Close Price 9.18). On prior close, 10/7/2003, the implied volatility was 66.57% and at the 59.71 percentile. Closing price was 15.32.

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