The hyper volatility prevailing in the secondary markets witnessed during last couple of weeks took its toll on the listing of SBI Cards and Payment Services (SBI Cards) when its shares came to listing on the bourses on Monday. The shares of SBI Cards listed at a hefty discount of 12.45 per cent at Rs 661 against its issue price of Rs 755 on the National Stock Exchange (NSE) on Monday. On the BSE, it opened at Rs 658, 13 per cent lower against issue price. The stock eventually ended at Rs 683 apiece on the BSE.