Bank option implied volatility into Brexit vote

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BARCLAYS PLC (NYSE: BCS) Delayed: 26.31 -0.02 (0.08%)
Previous Close $26.33    52 Week High $14.13 
Open $26.68    52 Week Low $6.76 
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Day Low $26.30    EPS $0.00 
Volume 5,875,327       

HSBC HOLDINGS PLC (NYSE: HSBC) Delayed: 94.97 -0.26 (0.27%)
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Day Low $94.92    EPS $0.00 
Volume 1,404,580       

THE ROYAL BANK OF SCOTLAND GROUP PLC (NYSE: RBS) Delayed: 3.09 --0 (-0%)
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Open $24.98    52 Week Low $3.91 
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Day Low $3.09    EPS $0.00 
Volume 2,168