This excerpt taken from the MOLX 10-K filed Aug 3, 2006.
Deferred Amounts. Deferred Amounts shall be credited to a Participants Account on the date of funding pursuant to Section 8.6.
Earnings and Losses. Each Participants Account shall be credited with earnings (or losses) thereon daily or some less frequent time period as agreed upon by the Committee and the Trustee. Such earnings (or losses) shall be based upon the actual returns achieved pursuant to the Investment Elections of each Participant.