Yes Bank shares plunged over 12% on Monday, falling to a low of Rs 14.40 intraday as investors looked to book profits in the early trade. The stock was trading at Rs 15.45 and was down by Rs 1.05 or 6.36%. The lock-in period for the consortium of 8 lenders led by the State Bank of India (SBI), who invested in YES Bank in 2020, is expiring today.