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Share Options and Awards
6 Months Ended
Jun. 30, 2017
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]  
Share Options and Awards
Share Options and Awards
During 2017, we granted share awards incorporating both service-based and market-based measures to promote share ownership among the participants and to emphasize the importance of total shareholder return ("TSR"). The terms of each grant vary depending upon the participant's responsibilities and position within the Company. We categorize these share awards as either service-based share awards or market-based share awards. All awards were valued at the fair market value on the date of grant and earn dividends from the date of grant. Compensation expense is measured at the grant date and recognized over the vesting period. Generally, unvested share awards are forfeited upon the termination of the participant’s employment with us.
The fair value of the market-based share awards was estimated on the date of grant using a Monte Carlo valuation model based on the following assumptions:
 
Six Months Ended
June 30, 2017
 
Minimum
 
Maximum
Dividend yield
0.0
%
 
4.1
%
Expected volatility (1)
16.1
%
 
19.1
%
Expected life (in years)
N/A

 
3

Risk-free interest rate
0.7
%
 
1.5
%

_______________
(1)    Includes the volatility of the FTSE NAREIT U.S. Shopping Center Index and Weingarten Realty Investors.
A summary of the status of unvested share awards for the six months ended June 30, 2017 is as follows:
 
Unvested
Share
Awards
 
Weighted
Average 
Grant
Date Fair 
Value
Outstanding, January 1, 2017
590,854

 
$
32.52

Granted:
 
 
 
Service-based awards
121,999

 
35.82

Market-based awards relative to FTSE NAREIT U.S. Shopping Center
Index
54,454

 
39.00

Market-based awards relative to three-year absolute TSR
54,454

 
25.65

Trust manager awards
28,280

 
32.77

Vested
(228,506
)
 
30.74

Forfeited
(1,657
)
 
33.76

Outstanding, June 30, 2017
619,878

 
$
33.81


As of June 30, 2017 and December 31, 2016, there was approximately $3.2 million and $2.0 million, respectively, of total unrecognized compensation cost related to unvested share awards, which is expected to be amortized over a weighted average of 2.0 years and 1.8 years, respectively.