The performance data quoted represents past performance and does not guarantee future results. Current performance may be lower or higher. Click here to obtain the most recent month-end performance. Investment return and principal value of the fund will fluctuate, and shares may be worth more or less than their original cost when redeemed.

Portfolio Characteristics as of 12/31/2011

Total Assets	$17,548,990,744
Average Duration (Years)	4.07
Average Maturity (Years)	7.14
Average Coupon	3.50%
30-day SEC Yield - Class: Institutional	4.14%
30-day SEC Yield - Class: Administrative	0.00%
30-day SEC Yield - Class: Retail	3.92%

Click here to obtain the most recent month-end yields.

1 Other represents options, swaps and municipals.

2 MetWest receives credit quality rating on the underlying securities held by the fund from Moody's, Standard & Poors and Fitch. MetWest created the "Quality Distribution" breakdown by taking the highest rating of the three agencies when two or three of the agencies rate a security. If only one agency rated a security, MetWest will use that rating.

3 Quality Distribution UST/AGY % includes mortgage- and asset-backed securities that are issued by the U.S. Government and government agencies.

4 Holdings ≤ B were purchased at B or better.