Morningstar Indexes: Weekly Market Report

Markets experienced another choppy week as concerns about slowing growth in corporate profits and rising yields on long-term Treasuries undermined investors' confidence. The Morningstar US Market Index finished the week ending Jan. 26 down 0.4%.

As a group, value stocks showed their resilience as the Morningstar US Value Index--which has posted gains every week this year--added another 0.1% last week. Meanwhile, the Morningstar US Growth Index slid 0.4%.

The Morningstar Small Growth Index claimed the week's top spot among the nine Morningstar style indexes with a gain of 0.7%. The index was helped by strong quarterly earnings reports from semiconductor maker Trident Microsystems TRID, commercial printing firm VistaPrint VPRT, and biotech outsourcing firm Parexel International PRXL. The share prices of all three firms surged, closing the week higher by 19.1%, 12.9%, and 18.6%, respectively.

The Morningstar Large Core Index trailed the other style indexes, posting a 1.2% decline. General Electric GE, the largest company in the index, proved to be a drag on index returns after announcing that it would need to restate its earnings since 2001. GE stock was down 2.4% for the week. The second largest company in the index, Microsoft MSFT, saw its shares drop 1.6% after reporting that the delayed launch of the Vista operating system hurt profits.