ICICI an ending diagonal ?

ICIC bank has seen a strong run up for a while now and in the recent times , has seen a rather exhaustion in rallies in the form of an ending diagonal. While a diagonal in theory could mean low volatility , in situation like this when ICICI bank has contributed well into Nifty bank could now find challenges to rally. RSI momentum also makes it evident that a new stock high is not followed by rising momentum , a sign of trend reversal.