US stockmarket - the 3 key indices are very close to generating technical tops / technical sell signals, which if triggered, would indicate the potential for further significant downside. The emergence of potential technical tops at a US index level follows on from the technical analysis based warning QMG provided to clients in late September, relating to the unsustainability of the US rally based on it being located in extreme overbought territory. Specifically, the parallels between the broad rally that commenced in early 2009, to the rally that occurred between late 2002 and late 2007 was highlighted. The US market is entering a crucial technical phase.