STOCK-BASED COMPENSATION (Tables)

3 Months Ended

Mar. 31, 2020

Share-based Payment Arrangement [Abstract]

Valuation Assumptions

The assumptions used to estimate the fair value of performance-based restricted stock units granted in 2020 were as follows:

	2020
Expected term (years)	1.1 to 1.6
Expected volatility	43.8%
Risk-free interest rate	0.9%
Vesting price(1)	$43.23 - $55.21
Grant date fair value per share	$11.49 - $16.24

(1)

The vesting price is the average of the daily volume-weighted average share price of U.S. Concrete's common stock over any period of 20 consecutive trading days within the three-year period beginning on the date of grant. These hurdles were established on March 1, 2020.