Spot rubber declined on Monday. The wide gap between the spot and futures prices and the absence of genuine buyers kept the commodity under pressure during the day. RSS 4 weakened to ₹136 (137) a kg according to traders and the Rubber Board. The volumes were dull. October futures lost further to ₹127.32 (129.93) per kg on the Indian Commodity Exchange (ICEX). RSS 3 (spot) slid to ₹109.23 (109.63) per kg at Bangkok. Spot rubber rates (Rs/kg) : RSS-4: 136 (137); RSS-5: 131 (132); ISNR 20: 111 (112) and Latex (60% drc): 106.75 (106.75).