Spot rubber made all round gains on Monday. RSS 4 improved to ₹112 (₹111) a kg as quoted by the traders. The grade firmed up to ₹111.50 (₹110.50) and ₹108.50 (₹107.50) respectively, according to the Rubber Board and the dealers. The volumes continued to remain low. April futures improved to ₹117.18 (₹115.04) and May futures to ₹120.64 (₹118.36) on the National Multi Commodity Exchange. RSS 3 (spot) slid to ₹99.57 (₹99.67) at Bangkok. Spot rubber rates (₹/kg): RSS-4: 112 (111); RSS-5: 109(108); Ungraded: 106 (105); ISNR 20: 106(104.50) and Latex (60% drc): 79.25 (78.50).