polyester products average price and total cash flow comparison

Based on rough calculation, correlation coefficient of polyester products average price and average cash flow is around 0.42, which means the inverse correlation coefficient approaches 0.6, the similar as we feel in actual trading. Below chart gathers PX, PTA and polyester products cash flow, which doesn't include any unit, but we still could tell either PX, PTA or polyester products, their factory cash flow is squeezing. Even the weakening of polyester raw materials has improved the benefits of some polyester products on the book, it is still difficult to change the fate of the entire industrial chain being gnawed by the upstream sector. Meanwhile, PET bottle chip price is falling, and the stock that hasn’t been sold by factories is in the process of depreciation