Seoul shares slide on earnings pessimism

* KOSPI falls on Q3 earnings worries

* KEPCO down on KDIC stake sale

* Samsung Electronics sags despite TV music deal

SEOUL, Oct 10 (Reuters) - Seoul shares fell on Wednesdaymorning continuing a losing week, weighed by concerns about U.S.corporate earnings.

The Korea Composite Stock Price Index (KOSPI) ticked1.03 percent lower to 1,958.63 points as of 0216 GMT.

"The lack of momentum from policymakers means that equitiesmarkets will take their cue from corporate fundamentals," saidKim Dae-joon, a strategist at Taurus Investment and Securities,in a note to investors.

Kim wrote that earnings surprises from the United Stateswere likely to be fewer as the number of companies whose profitswere expected to improve was shrinking.

Korea Electric Power Corp (KEPCO) slumped 2.8percent following Korea Deposit Insurance Corp's (KDIC) sale ofabout $550 million worth of shares, according to a source withdirect knowledge of the sale.

Shares in index heavyweight Samsung Electronicswere down 1.9 percent, despite announcing a deal to bring musicstreaming service Spotify to its TVs.

Declining shares outnumbered winners 546 to 239.

The KOSPI 200 benchmark of core stocks was down 1.1percent, while the junior KOSDAQ edged 0.6 percentlower.

(Reporting By Somang Yang; Editing by Jacqueline Wong)

((somang.yang@thomsonreuters.com)(+82 2 3704 5643)(ReutersMessaging: somang.yang.thomsonreuters.com@reuters.net))