Symbol:    
American Tower Corp 
Options Root:  Open Help    AMT  
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Current1 WK AGO1 MO AGO52 wk Hi/Date52 wk Low/Date
  HISTORICAL VOLATILITY Open Help
10 days21.58%15.92%19.40%39.66% - 16-Sep9.10% - 15-Mar
20 days20.33%16.97%20.97%31.76% - 30-Sep10.37% - 28-Mar
30 days20.26%15.80%20.07%27.15% - 19-Sep10.91% - 22-Feb
  IMPLIED VOLATILITY Open Help
IV Index call Open Help21.79%21.71%17.91%25.18% - 08-Oct12.88% - 15-Mar
IV Index put Open Help21.45%20.94%18.02%25.86% - 03-Oct13.28% - 20-Mar
IV Index mean Open Help21.62%21.33%17.97%25.37% - 02-Oct13.42% - 14-Mar
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      AMT: DAILY 1 YEAR VOLATILITY CHART   ( 3 months    6 months    1 year )
    IV Index Call     IV Index Put     IV Index Call & Put     IV Index Mean
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Volatility chart
OPTIONS VOLUME, CONTRACTS
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Options volume chart