CBOT wheat slumps as traders adjust positions

CHICAGO, Sept 26 (Reuters) - Chicago Board of Trade wheat futures closed lower on Friday as traders adjusted positions before the end of the quarter and the release of U.S. grain stocks data next week, traders said.

• Ample global supplies hung over the market.

• The U.S. Department of Agriculture on Tuesday is expected to report domestic wheat stocks were 2.043 billion bushels on September 1, up from 1.992 billion a year earlier, according to a Reuters poll of analysts.

• Analysts estimated U.S. all-wheat production at 1.925 billion bushels, nearly flat from USDA's latest estimate for 1.927 billion.

• CBOT December soft red winter wheat WZ25 closed 7-1/4 cents lower at $5.19-3/4 per bushel. The contract declined by about 0.5% for the week.

• K.C. December hard red winter wheat KWZ25 last traded 6-3/4 cents lower at $5.05-1/2 a bushel. Minneapolis December spring wheat MWEZ25 was last down 6 cents at $5.67 a bushel.