COMEX copper is rebounding after a sharp decline in the last couple of days as dollar regained strength above 99 mark. The greenback climbed to a three-month high above 99 mark as rising oil prices triggered inflation concerns that reduced likelihood of Federal rate cut anytime soon. Meanwhile, the Dow ended the day down 403.51 points or 0.8 percent at 48,502.27 after plummeting by more than 1,200 points to its lowest intraday level in almost three months. The Nasdaq slumped 232.17 points or 1.0 percent to 22,516.69 and the S&P 500 slid 64.99 points or 0.9 percent to 6,816.63. The indexes had plunged by as much as 2.7 percent and 2.5 percent, respectively, hitting three-month lows. The red metal is currently seen quoting at $5.91 per pound, up 1.5% on the day.