Physical rubber prices turned weak on Friday. The market appeared to be in a holiday mood owing to Sri Narayana Guru Samadhi.
The gap between the domestic futures kept it under pressure on late trading hours.
Sheet rubber slipped to Rs 191.50 (192) a kg both at Kottayam and Kochi, according to traders and the Rubber Board. The trend was partially mixed.
RSS 4 recovered partially at its October series to Rs 189.25 (187.19), November to Rs 188.50 (186.66), December to Rs 189.30 (187.48), February to Rs 191.50 (191.50) and March to Rs 194.88 (190.50) a kg while the January series remained inactive on the National Multi Commodity Exchange.
RSS 3 (spot) weakened to Rs 173.39 (173.44) a kg at Bangkok.
The September futures improved to ¥243 (Rs 166.31) from ¥240 during the day session but then declined to ¥240 (Rs 164.26) in the night session on the Tokyo Commodity Exchange.
Spot rates were (Rs/kg): RSS-4: 191.50 (192); RSS-5: 186 (187); ungraded: 178 (181); ISNR 20: 176 (177) and latex 60 per cent: 130 (130).