Securities and Exchange Commission

Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum

The estimated measure of the minimum percentage by which a share price is expected to fluctuate during a period. Volatility also may be defined as a probability-weighted measure of the dispersion of returns about the mean. The volatility of a share price is the standard deviation of the continuously compounded rates of return on the share over a specified period. That is the same as the standard deviation of the differences in the natural logarithms of the stock prices plus dividends, if any, over the period.

Compare To Other Companies

Quarterly (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.6354	2015-05-11	10-Q	2015	Q1	2014-01-01	2014-03-31	CY2014Q1
0.6447	2015-05-11	10-Q	2015	Q1	2015-01-01	2015-03-31	CY2015Q1

All Reported Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.6354	2015-05-11	10-Q	2015	Q1	2014-01-01	2014-03-31	CY2014Q1
0.6447	2015-05-11	10-Q	2015	Q1	2015-01-01	2015-03-31	CY2015Q1