SBI the largest public sector bank is forming a head & shoulder pattern on weekly charts along with a breach of neckline support from where early breakout occurred. given that ads negative trend strength is rising , If the momentum support at psi 40 breaches along with a confluence support breach of bottom trendline from 2020, then it could be retesting the previous swing low at 500 & if could not find help there could be heading to swing low near fib retracement 38 neat 450.