US STOCKS-Wall St sheds gains after comments on rate rise
* Global markets higher on hopes of Greek debt solution
* Fed's Powell says economy could be ready for first hike in Sept
* May single-family home sales rise to a more than seven-year high
* Indexes: Dow up 0.07 pct, S&P down 0.02 pct, Nasdaq down 0.08 pct (Adds details, changes comment, updates shares)
By Tanya Agrawal
June 23 (Reuters) - U.S. stocks trimmed earlier gains and were mostly negative in late morning trading after comments from Federal Reserve Governor Jerome Powell that the economy could be ready for interest rate increases twice this year.
The Nasdaq Composite index touched a record high earlier in the session, while the S&P 500 was less than seven points away from its all-time high, before they turned negative.
Global markets have been trading higher with European shares climbing to a three-week high, after Athens proposed new reforms on Monday, which were cautiously welcomed by euro zone finance ministers.
Mohannad Aama, managing director at Beam Capital Management in New York, said it was normal for investors to take to the sidelines and take away some profits after a big rally. Continuación...