NYBOT arabica coffee futures edged up on Thursday as funds and speculators focused on trading between the two front contracts ahead of September's first notice day next week, traders said.
"There was a little fund and roaster buying, but the bulk of the volume was trading on spreads," one trader said.
Benchmark December coffee, which has overtaken September in open-interest volume, rose 0.70 cent to 70.55 cents a lb, after trading in a 69.60 cent to 70.85 cent range.
September crept up 0.50 cent to 67.10 cents after trading from 66.30 cents to 67.50 cents. The rest of the contracts advanced 0.55 cents to 0.65 cents. The first notice day for September is August 23.
Otherwise, there was little fundamental news.