Caterpillar (CAT) implied volatility trades below 20 as shares at record high

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Caterpillar Inc. (NYSE: CAT) Delayed: 819.95 -1.63 (0.2%)
Previous Close $821.58    52 Week High $95.50 
Open $821.05    52 Week Low $56.36 
Day High $827.57    P/E 142.60 
Day Low $808.20    EPS $5.75 
Volume 2,177,351