Ecovyst, Inc. Annual report pursuant to Section 13 and 15(d)

Cover
- Cover
- Audit Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Policies)
Notes Tables
Notes Details

v3.22.0.1

Stock-Based Compensation - Stock Option Assumptions and Methodology (Details)	12 Months Ended
	Dec. 31, 2021
2021 Monte Carlo simulation
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology
Expected dividend yield, Monte Carlo simulation	0.00%
Risk-free interest rate, Monte Carlo simulation	0.20%
Expected volatility rate, Monte Carlo simulation	41.70%
Expected term, Monte Carlo simulation	2 years 11 months 12 days
Grant date fair value, Monte Carlo simulation	13.21
2020 Monte Carlo simulation
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology
Expected dividend yield, Monte Carlo simulation	0.00%
Risk-free interest rate, Monte Carlo simulation	1.56%
Expected volatility rate, Monte Carlo simulation	28.57%
Expected term, Monte Carlo simulation	2 years 11 months 12 days
Grant date fair value, Monte Carlo simulation	24.11

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