Securities and Exchange Commission

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

The estimated measure of the 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
0.379	2011-02-24	10-K	2010	FY	2008-01-01	2008-12-31	CY2008
0.417	2012-02-16	10-K	2011	FY	2009-01-01	2009-12-31	CY2009
0.327	2013-02-14	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
0.337	2014-02-14	10-K	2013	FY	2011-01-01	2011-12-31	CY2011
0.352	2015-02-13	10-K	2014	FY	2012-01-01	2012-12-31	CY2012
0.271	2016-02-12	10-K	2015	Q4	2013-01-01	2013-12-31	CY2013
0.191	2017-02-15	10-K	2016	FY	2014-01-01	2014-12-31	CY2014
0.206	2018-02-14	10-K	2017	Q4	2015-01-01	2015-12-31	CY2015
0.233	2019-02-13	10-K	2018	Q4	2016-01-01	2016-12-31	CY2016
0.193	2020-02-14	10-K	2019	FY	2017-01-01	2017-12-31	CY2017
0.197	2021-02-12	10-K	2020	FY	2018-01-01	2018-12-31	CY2018
0.196	2022-02-11	10-K	2021	FY	2019-01-01	2019-12-31	CY2019
0.193	2023-02-14	10-K	2022	FY	2020-01-01	2020-12-31	CY2020
0.261	2024-02-13	10-K	2023	FY	2021-01-01	2021-12-31	CY2021
0.246	2025-02-12	10-K	2024	FY	2022-01-01	2022-12-31	CY2022
0.295	2025-02-12	10-K	2024	FY	2023-01-01	2023-12-31	CY2023
0.287	2025-02-12	10-K	2024	FY	2024-01-01	2024-12-31	CY2024

Quarterly (pure)

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.206	2015-04-29	10-Q	2015	Q1	2015-01-01	2015-03-31	CY2015Q1
0.233	2016-04-28	10-Q	2016	Q1	2016-01-01	2016-03-31	CY2016Q1
0.193	2017-05-02	10-Q	2017	Q1	2017-01-01	2017-03-31	CY2017Q1
0.197	2018-05-02	10-Q	2018	Q1	2018-01-01	2018-03-31	CY2018Q1
0.196	2019-04-30	10-Q	2019	Q1	2019-01-01	2019-03-31	CY2019Q1
0.193	2020-04-29	10-Q	2020	Q1	2020-01-01	2020-03-31	CY2020Q1
0.261	2021-04-29	10-Q	2021	Q1	2021-01-01	2021-03-31	CY2021Q1

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

Value	Reported On	Form	FY	FP	Start Date	End Date	Fiscal Period
0.379	2011-02-24	10-K	2010	FY	2008-01-01	2008-12-31	CY2008
0.417	2011-02-24	10-K	2010	FY	2009-01-01	2009-12-31
0.417	2012-02-16	10-K	2011	FY	2009-01-01	2009-12-31	CY2009
0.327	2011-02-24	10-K	2010	FY	2010-01-01	2010-12-31
0.327	2012-02-16	10-K	2011	FY	2010-01-01	2010-12-31
0.327	2013-02-14	10-K	2012	FY	2010-01-01	2010-12-31	CY2010
0.337	2012-02-16	10-K	2011	FY	2011-01-01	2011-12-31
0.337	2013-02-14	10-K	2012	FY	2011-01-01	2011-12-31
0.337	2014-02-14	10-K	2013	FY	2011-01-01	2011-12-31	CY2011
0.352	2013-02-14	10-K	2012	FY	2012-01-01	2012-12-31
0.352	2014-02-14	10-K	2013	FY	2012-01-01	2012-12-31
0.352	2015-02-13	10-K	2014	FY	2012-01-01	2012-12-31	CY2012
0.271	2014-02-14	10-K	2013	FY	2013-01-01	2013-12-31
0.271	2015-02-13	10-K	2014	FY	2013-01-01	2013-12-31
0.271	2016-02-12	10-K	2015	Q4	2013-01-01	2013-12-31	CY2013
0.191	2015-02-13	10-K	2014	FY	2014-01-01	2014-12-31
0.191	2016-02-12	10-K	2015	Q4	2014-01-01	2014-12-31
0.191	2017-02-15	10-K	2016	FY	2014-01-01	2014-12-31	CY2014
0.206	2015-04-29	10-Q	2015	Q1	2015-01-01	2015-03-31	CY2015Q1
0.206	2015-07-29	10-Q	2015	Q2	2015-01-01	2015-06-30
0.206	2015-10-29	10-Q	2015	Q3	2015-01-01	2015-09-30
0.206	2016-02-12	10-K	2015	Q4	2015-01-01	2015-12-31
0.206	2017-02-15	10-K	2016	FY	2015-01-01	2015-12-31
0.206	2018-02-14	10-K	2017	Q4	2015-01-01	2015-12-31	CY2015
0.233	2016-04-28	10-Q	2016	Q1	2016-01-01	2016-03-31	CY2016Q1
0.233	2016-07-28	10-Q	2016	Q2	2016-01-01	2016-06-30
0.233	2016-10-28	10-Q	2016	Q3	2016-01-01	2016-09-30
0.233	2017-02-15	10-K	2016	FY	2016-01-01	2016-12-31
0.233	2018-02-14	10-K	2017	Q4	2016-01-01	2016-12-31
0.233	2019-02-13	10-K	2018	Q4	2016-01-01	2016-12-31	CY2016
0.193	2017-05-02	10-Q	2017	Q1	2017-01-01	2017-03-31	CY2017Q1
0.193	2017-07-27	10-Q	2017	Q2	2017-01-01	2017-06-30
0.193	2017-10-31	10-Q	2017	Q3	2017-01-01	2017-09-30
0.193	2018-02-14	10-K	2017	Q4	2017-01-01	2017-12-31
0.193	2019-02-13	10-K	2018	Q4	2017-01-01	2017-12-31
0.193	2020-02-14	10-K	2019	FY	2017-01-01	2017-12-31	CY2017
0.197	2018-05-02	10-Q	2018	Q1	2018-01-01	2018-03-31	CY2018Q1
0.197	2018-07-26	10-Q	2018	Q2	2018-01-01	2018-06-30
0.197	2018-10-30	10-Q	2018	Q3	2018-01-01	2018-09-30
0.197	2019-02-13	10-K	2018	Q4	2018-01-01	2018-12-31
0.197	2020-02-14	10-K	2019	FY	2018-01-01	2018-12-31
0.197	2021-02-12	10-K	2020	FY	2018-01-01	2018-12-31	CY2018
0.196	2019-04-30	10-Q	2019	Q1	2019-01-01	2019-03-31	CY2019Q1
0.196	2019-07-30	10-Q	2019	Q2	2019-01-01	2019-06-30
0.196	2019-10-29	10-Q	2019	Q3	2019-01-01	2019-09-30
0.196	2020-02-14	10-K	2019	FY	2019-01-01	2019-12-31
0.196	2021-02-12	10-K	2020	FY	2019-01-01	2019-12-31
0.196	2022-02-11	10-K	2021	FY	2019-01-01	2019-12-31	CY2019
0.193	2020-04-29	10-Q	2020	Q1	2020-01-01	2020-03-31	CY2020Q1
0.193	2020-07-30	10-Q	2020	Q2	2020-01-01	2020-06-30
0.193	2020-10-28	10-Q	2020	Q3	2020-01-01	2020-09-30
0.193	2021-02-12	10-K	2020	FY	2020-01-01	2020-12-31
0.193	2022-02-11	10-K	2021	FY	2020-01-01	2020-12-31
0.193	2023-02-14	10-K	2022	FY	2020-01-01	2020-12-31	CY2020
0.261	2021-04-29	10-Q	2021	Q1	2021-01-01	2021-03-31	CY2021Q1
0.261	2021-07-29	10-Q	2021	Q2	2021-01-01	2021-06-30
0.261	2021-10-28	10-Q	2021	Q3	2021-01-01	2021-09-30
0.261	2022-02-11	10-K	2021	FY	2021-01-01	2021-12-31
0.261	2023-02-14	10-K	2022	FY	2021-01-01	2021-12-31
0.261	2024-02-13	10-K	2023	FY	2021-01-01	2021-12-31	CY2021
0.246	2023-02-14	10-K	2022	FY	2022-01-01	2022-12-31
0.246	2024-02-13	10-K	2023	FY	2022-01-01	2022-12-31
0.246	2025-02-12	10-K	2024	FY	2022-01-01	2022-12-31	CY2022
0.295	2024-02-13	10-K	2023	FY	2023-01-01	2023-12-31
0.295	2025-02-12	10-K	2024	FY	2023-01-01	2023-12-31	CY2023
0.287	2025-02-12	10-K	2024	FY	2024-01-01	2024-12-31	CY2024