Bank option implied volatility into Brexit vote

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BARCLAYS PLC (NYSE: BCS) Delayed: 22.36 +0.03 (0.13%)
Previous Close $22.33    52 Week High $14.13 
Open $22.59    52 Week Low $6.76 
Day High $22.61    P/E N/A 
Day Low $22.36    EPS $0.00 
Volume 1,771,159       

HSBC HOLDINGS PLC (NYSE: HSBC) Delayed: 93.54 +0.80 (0.86%)
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Open $94.41    52 Week Low $28.62 
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Day Low $93.49    EPS $0.00 
Volume 429,964       

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