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Staff Issues
Accounting Bulletin on Estimating Term of Share Options
The SEC's Office of
the Chief Accountant and the Division of Corporation Finance last week issued a
staff accounting bulletin which extended the time during which companies may
continue to use a simplified method to estimate the expected term of "plain
vanilla" share options (Staff
Accounting Bulletin No. 110, December 21, 2007). The bulletin may be used by
public companies that are not able to estimate the expense of their stock
options based on their historical experience. Many of the companies lacking
historical data are smaller public companies.
SAB 110 amends and
replaces previous staff views outlined in SAB 107. The simplified method permits
a company to use the average of the vesting term and the original contractual
term to determine the expected term for plain vanilla options. Plain vanilla
options are those that are granted at-the-money in which the exercise is
conditioned only on the employee's performance of service through the vesting
date. Additional characteristics of a plain vanilla option are that the options
are forfeited if the employee terminates service prior to vesting, the employee
has a limited time to exercise the options if service is terminated and the
options are nontransferable and nonhedgeable.
When the staff issued
SAB 107, it expected that detailed information about exercise behavior would be
available by December 31, 2007 and would provide the basis on which to calculate
the expected term of share option grants. The staff has since learned that the
information will not be widely available by that date, so it will continue to
accept the simplified method under certain circumstances. Once more detailed
information becomes available, the simplified method will no longer be
permitted.
SAB 110 outlines the
situations in which it may be appropriate to use the simplified method for
expensing employee stock options. For example, a company may use the simplified
method if it does not have enough historical exercise data to provide a
reasonable basis on which to estimate the expected term due to the limited
period of time its equity shares have been publicly traded. Another example is
where a company significantly changes the terms of its option grants or the
types of employees that receive the grants so that the historical exercise data
no longer provides a reasonable basis for estimating the expected return.
The staff provided a
third example in which a company has or expects to have significant structural
changes in its business to the extent that its historical data no longer
provides a reasonable basis upon which to estimate the expected return.
The staff also
recognized that companies may have sufficient historical data for some of its
share option grants but not for others. The staff will accept the use of the
simplified method for the option grants for which sufficient historical data is
lacking. A company does not have to consider using the lattice model before
deciding that it is eligible to use the simplified method. The staff will not
object to the use of the simplified method in periods prior to the time that a
company's equity shares are traded in a public market.
SAB 110 advises that
a company using the simplified method must disclose in the notes to its
financial statements that is has used the simplified method and its reason for
doing so. The company must disclose the types of option grants for which the
method was used if it was not used for all of the share option grants, along
with the periods for which the method was used. Companies that have enough
historical data to estimate the expected term may not apply the simplified
method.
The staff also notes
that the simplified method is not intended to be used as a benchmark in
evaluating whether it is appropriate to use a more refined estimate of the
expected term.
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