1.   An overabundance of investor optimism caused too many investors to get hit with margin calls.

2.   Analysts say there are sound reasons for investor optimism.

3.   A second straight week peppered with record highs lifted investor optimism about U.S. stocks.

4.   A two-week march to record highs for the U.S. stock market helped reverse a slump in investor optimism last week.

5.   BRAZILIAN stocks rose to a record, led by Petroleo Brasileiro SA, on investor optimism about prospects for constitutional reforms making it easier to cut spending.

6.   But investor optimism is hard to kill.

7.   Canadian government bonds rose after the Federal Reserve left interest rates unchanged and investor optimism grew that U.S. economic growth is slowing.

8.   Colgate was just one of a string of worse-than-expected quarterly earnings announcements that weakened investor optimism that profits might prove uniformly positive.

9.   Colombian stocks rose slightly on investor optimism that interest rates will stay relatively low.

10.   Connecticut stocks rose today, led by Gartner Group Inc., whose shares climbed on investor optimism that computer-related stocks.