Physical rubber prices showed a mixed trend on Monday. RSS 4 closed unchanged at ₹140 a kg, according to traders and the Rubber Board. The grade was quoted steady at ₹137 by dealers. July futures weakened ₹140 (₹143.18), August to ₹134.20 (₹136.10), September to ₹127.80 (₹130.04) and October to ₹127.40 (₹131.34) on the National Multi Commodity Exchange. RSS 3 (spot) declined to ₹106.98 (₹109.03) at Bangkok. July futures improved to ¥ 163.1 (₹106.95) on the Tokyo Commodity Exchange. Spot rubber rates ₹/ kg were: RSS-4: 140 (140); RSS-5: 136 (137); Ungraded: 110 (110); ISNR 20: 118 (118) and Latex (60% drc): 96.50 (98).