After $320 jump overnight, LME 3-month copper likely to retreat a bit more as traders book profits ahead of weekend, should range $6,350-$6,500/ton, says HK-based trader; last at $6,500, down $40 vs London PM kerb. Notes sharp overnight gains due to continued drawdown in LME stocks, greater optimism global equity markets have stabilized, which had capped copper, base metals; "when those (stock market) worries subsided, investors came in and bought (3-month copper) past the 100-day resistance."