MPUYX: Profile for MASSMUTUAL PREMIER MAIN STREET

Ziehl joined RS Investments in October 2006 in connection with GIS's acquisition of an interest in RS Investments. From December 2001 to October 2006, he served as a managing director at Guardian Life. Prior to joining Guardian Life, he was a team leader with Salomon Brothers Asset Management, Inc. for small growth portfolios since January 2001, and a co-portfolio manager of Salomon Brothers Small Cap Growth Fund since August 1999. Ziehl holds the Chartered Financial Analyst designation.

INVESTMENT INFORMATION

Min Initial Investment:	$0
Min Initial Investment, IRA:	NaN
Min Initial Investment, AIP:	NaN
Min Subsequent Investment:	NaN
Min Subsequent Investment, IRA:	N/A
Min Subsequent Investment, AIP:	N/A

MPUYX can be purchased from brokerages.

FUND SUMMARY

The investment seeks capital appreciation. The fund invests mainly in common stocks of small-capitalization U.S. companies that the fund's sub-adviser, OFI Institutional Asset Management, Inc., believes have favorable business trends or prospects. It normally invests at least 80% of net assets in securities of companies having a small market capitalization.

FUND OPERATIONS

Last Dividend (17-Dec-07):	0.10
Last Cap Gain (5-Dec-07):	0.20
Annual Holdings Turnover	YFT_NOT_APPLICABLE_ABBREVIATION
Average for Category:	91.53%

FEES & EXPENSES

Expense	MPUYX	Category Avg
Total Expense Ratio:	%	1.41%
Max 12b1 Fee:	%	N/A
Max Front End Sales Load:	%	5.36%
Max Deferred Sales Load:	%	2.34%
3 Yr Expense Projection*:	$ YFT_NOT_APPLICABLE_ABBREVIATION	$620
5 Yr Expense Projection*:	$ YFT_NOT_APPLICABLE_ABBREVIATION	$994
10 Yr Expense Projection*:	$ YFT_NOT_APPLICABLE_ABBREVIATION	$2,000

* Per $10,000 invested

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