SMM May 27th: today, the spot contract of electrolytic copper in Shanghai is quoted as rising water 170 to 210 yuan / ton, flat copper at 44130 yuan / ton to 44200 yuan / ton, and copper at 44140 yuan / ton to 44210 yuan / ton. The rebound of copper in Shanghai was blocked at the 44000 yuan / ton mark. Invoice share increased significantly today next month, invoice holders have the willingness to cash, next month ticket morning market continues yesterday quoted water 180 ~ 200 yuan / ton, the inquiry atmosphere is light, the transaction is quiet, next month invoice holders take the initiative to lower the shipment, good copper in the water 190 million 200 yuan / ton, flat copper as low as 170 yuan / ton, next month invoice wet copper quotation 140 to 150 yuan / ton. As there is still demand for the supply of monthly tickets in the market, some holders insist on the quotation of some monthly tickets, which is generally 10 RMB20 / ton higher than next month's ticket. Good copper quotes around 210 yuan / ton, and Pingshui copper quotes around 190 yuan / ton. Towards the end of the month, the tide of replacement tickets gradually faded, high-level buying showed hesitation, sellers were still willing to cash at high prices, and trading activity was significantly lower than yesterday, but at present, Shanghai inventory is still in an obvious downward trend, and the room for rising water and downward adjustment is limited.