The aluminium market service short term outlook (STO) is published monthly and provides a forecast of aluminium supply and demand fundamentals over the next two-years. The LME price raced to a 2017 high of $2215/t on October 26, the highest level since March 2012 when the price hit $2362/t. The official cash price broke through the $2100/t resistance level during the final week of September from where it has continued to build strength. Aluminium has retained its position as one of the best performing metals on the LME during 2017, dipping just below zinc in the final few weeks of October. Much of the recent rise in base metals prices can be attributed to stronger-than-expected macroeconomic data, which is fuelling investor risk appetite. For aluminium prices, strength is being driven by both fresh buying and short covering, though there are concerns that the market may have overextended on long position building.