Performance Disclosure

The performance data quoted represents past performance. Past performance does not guarantee future results. The investment return and principal value of an investment will fluctuate so that an investor's shares, when sold or redeemed, may be worth more or less than their original cost and current performance may be lower or higher than the performance quoted. Performance current to the most recent month-end can be obtained by calling 617-228-5190. Short term performance, in particular, is not a good indication of the fund's future performance, and an investment should not be made based solely on returns.

Market Price: The current price at which shares are bought and sold. Market returns are based upon the last trade price.

NAV: The dollar value of a single share, based on the value of the underlying assets of the fund minus its liabilities, divided by the number of shares outstanding. Calculated at the end of each business day.

Median 30 Day Spread is a calculation of Fund's median bid-ask spread, expressed as a percentage rounded to the nearest hundredth, computed by: identifying the Fund's national best bid and national best offer as of the end of each 10 second interval during each trading day of the last 30 calendar days; dividing the difference between each such bid and offer by the midpoint of the national best bid and national best offer; and identifying the median of those values.