With another run today higher, the 14 day RSI (relative strength index) in the NDX is now at the highest level since Jan 2000. Momentum such as this that brings us overbought can keep us overbought for a continued period of time so it’s never a one stop timing measurement but it at least brings us some perspective on the strength of the rally. The RSI in the SPX is at the highest level since May ’07.
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