SHANGHAI, May 23 (SMM) – SHFE 1709 nickel opened at RMB 78,080/mt today, and met resistance from RMB 78,420/mt. In the afternoon, ferrous metals plunged. SHFE 1709 nickel erased all gains in the morning, and closed at RMB 77,630/mt, down RMB 220/mt or 0.28%. Trading volumes on SHFE 1709 nickel decreased 232,000 to 361,000, and positions decreased 1,790 to 550,000. SHFE nickel is expected to fluctuate at current level this evening.