Small finance banks shares: AU Small Finance Bank and Ujjivan Small Finance Bank shares plunged over 6% in Monday's trading session amid weak sentiment in the Indian stock market.AU Small Finance Bank share price opened at ₹884 per share today, as compared to the previous close of ₹932.90 on Friday and touched an intraday low of ₹845.40. Meanwhile, Ujjivan Small Finance Bank share price opened at ₹57.60 on NSE today, as compared to the previous close of ₹58.10 last week.