VOCERA COMMUNICATIONS, INC.
| 2013 | FY |
The fair value of the stock options granted to non-employees was calculated using the Black-Scholes option-pricing model with the following assumptions:
As of December 31,
2012
2011
Expected Term (in years)
8.67
8.83 - 10.0
Volatility
46.7%
45.0% - 54.0%
Risk-free interest rate
1.77%
1.63% - 3.41%
Dividend yield
0.0%
0.0%
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