Spot rubber finished almost unchanged . RSS 4 continued to rule steady at ₹150 a kg according to traders and the Rubber Board. The grade was flat at ₹147 according to dealers. In futures, the April contracts closed at ₹150 (₹149.60), May at ₹154.98 (₹154.16), June at ₹158.44 (₹156.78) and July at ₹155 (₹158.35) on the National Multi Commodity Exchange. Spot rubber rates (₹/kg) follow: RSS-4: 150 (150); RSS-5: 142 (142); Ungraded: 127 (127); ISNR 20: 133 (132) and Latex (60% drc): 94 (95).