Spot rubber showed a mixed trend on Wednesday. RSS 4 closed unchanged at ₹115.50 a kg, according to traders. The grade improved to ₹115.50 (₹115) and ₹112.50 (₹112) respectively, according to the Rubber Board and the dealers. October futures declined to ₹115.14 (₹115.99), November to ₹115.79 (₹117.28), December to ₹115.50 (₹117.19) on the National Multi Commodity Exchange. RSS 3 (spot) weakened to ₹87.79 (₹88.28) at Bangkok. October futures closed at ¥158.6 (₹86.33) on the Tokyo Commodity Exchange. Spot rubber rates (₹/kg) RSS-4: 115.50 (115.50); RSS-5: 113 (112.50); Ungraded: 107 (107); ISNR 20: 104 (103) and Latex (60% drc): 87 (87).