Berkshire Hathaway (BRK.B) 30-day call option implied volatility is at 32;

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(NYSE: BRK/B) Delayed: 4570.00 +46.00 (1.02%)
Previous Close $4524.00    52 Week High $ 
Open $4533.00    52 Week Low $ 
Day High $4589.00    P/E N/A 
Day Low $4510.00    EPS $ 
Volume 39,960