US STOCKS-Wall Street falls on caution after rally, retail drags
* Euro zone finance ministers in third attempt at Greek deal
* Investors take profits after last week's strong finish
* Qatar cashes in its warrants in Barclays, shares dip
* Knight Capital in talks for unit sale; shares jump
* Indexes off: Dow 0.7 pct; S&P 0.6 pct; Nasdaq 0.2 pct
By Edward Krudy
NEW YORK, Nov 26 (Reuters) - U.S. stocks eased on Monday as a mixed start to the holiday shopping season, caution over Greek aid talks and budget discussions in Washington gave investors reason to pause after Wall Street posted its best week in over five months.
While holiday shopping appeared to be off to a good start, analysts cautioned against reading too much into one weekend's numbers. Retailers need to sustain the initial burst through the November-December holiday season, which can account for a third of annual sales and 40 to 50 percent of profits for the year.
Shares in department store operator Macy's Inc, which offered consumers deep discounts on Black Friday, fell 3.6 percent to $40.22. The SPDR S&P retail exchange-traded fund fell 1.3 percent to $62.39. Continued...