Securities and Exchange Commission

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

The estimated measure of the maximum 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

Annual (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.73	2019-02-27	10-K	2018	FY	2016-01-01	2016-12-31	CY2016
0.71	2019-02-27	10-K	2018	FY	2017-01-01	2017-12-31	CY2017
0.69	2020-02-27	10-K	2019	FY	2018-01-01	2018-12-31	CY2018
0.73	2020-02-27	10-K	2019	FY	2019-01-01	2019-12-31	CY2019

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

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.73	2016-08-08	10-Q	2016	Q2	2016-01-01	2016-06-30
0.73	2016-11-10	10-Q	2016	Q3	2016-01-01	2016-09-30
0.73	2019-02-27	10-K	2018	FY	2016-01-01	2016-12-31	CY2016
0.73	2018-03-15	10-K	2017	FY	2016-01-01	2016-12-31
0.73	2017-03-13	10-K	2016	FY	2016-01-01	2016-12-31
0.71	2019-02-27	10-K	2018	FY	2017-01-01	2017-12-31	CY2017
0.71	2018-03-15	10-K	2017	FY	2017-01-01	2017-12-31
0.69	2020-02-27	10-K	2019	FY	2018-01-01	2018-12-31	CY2018
0.69	2019-02-27	10-K	2018	FY	2018-01-01	2018-12-31
0.73	2020-02-27	10-K	2019	FY	2019-01-01	2019-12-31	CY2019