Bank option implied volatility into Brexit vote

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BARCLAYS PLC (NYSE: BCS) Delayed: 24.35 +0.12 (0.50%)
Previous Close $24.23    52 Week High $14.13 
Open $24.74    52 Week Low $6.76 
Day High $24.81    P/E N/A 
Day Low $24.30    EPS $0.00 
Volume 1,792,724       

HSBC HOLDINGS PLC (NYSE: HSBC) Delayed: 89.21 -2.32 (2.53%)
Previous Close $91.53    52 Week High $40.74 
Open $90.63    52 Week Low $28.62 
Day High $91.02    P/E N/A 
Day Low $89.07    EPS $0.00 
Volume 1,369,775       

THE ROYAL BANK OF SCOTLAND GROUP PLC (NYSE: RBS) Delayed: 3.09 --0 (-0%)
Previous Close $3.09    52 Week High $9.66 
Open $24.98    52 Week Low $3.91 
Day High $3.09    P/E N/A 
Day Low $3.09    EPS $0.00 
Volume 2,168