While the PBOC was literally everything in its power to keep the SHCOMP green (it was too late to save the Shenzhen, the Chinext or most Chinese stocks as the PBOC’s firepower was limited to just the largest companies), it forgot about that other proxy of overall Chinese health: copper which, as the chart below shows, plunged by 4% to the lowest price since February when the oil commodity crash left everyone speechless and was threatening to destroy the entire junk bond space.