PRECIOUS-Gold down on profit-taking as stocks rally after Fed holds rates

* Spot gold may retest key resistance at $1,338 -technicals

* SPDR Gold holdings up 0.60 pct Wednesday

* Silver hits 2-wk high, palladium off highest since Sept 8

(Recasts, adds comments, updates prices)

By Swati Verma

BENGALURU, Sept 22 (Reuters) - Gold prices edged lower on

Thursday as investors booked profits after a 1.5 percent rise in

the previous session, opting for riskier assets like equities

after the U.S. Federal Reserve held interest rates steady at the

end of a two-

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