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 Price  is the current Stock Price
 Days  is the number of days in the future for which the probability will be computed. Days can be calculated by selecting an Expiration Date. Days are counted starting from the most recent trading day.
 NTM Volatility  (Near The Money Volatility), is the implied volatility interpolated from current near term, near the money option contracts for the selected stock.
 Rate  is the approximate risk free interest rate.
 Next Dividend Date  The next exdividend date, which may be estimated from past dividend payments.
 Next Amt  is the amount of the next dividend, which may be estimated from past dividend payments.
Probabilities are computed assuming a lognormal distribution and a graph is provided.
 Lower and Upper bounds may be entered in the text box or selected from the list of available strikes for the selected stock.
 The NTM Implied Volatility is used to compute option prices and greeks, which are displayed in the tables on the right. They are approximations and are not based on market data.
Greeks are computed for theoretical options at the current price, lower bound, upper bound, and days left. The calculator will compute probabilities regardless of whether an actual contract with matching price, strike, and expiration exists. Computed Greeks are NOT based on current market data, and the results may not be consistent with volatility and pricing used in other features on this site.
Probability calculations are approximations and are subject to data errors, computation errors. variations in prices, bid and ask spreads, interest rates, and future undeclared dividends. The calculator estimates the probability of future prices based on current market conditions or user entered data. Factors used as a basis for the probability computations are subject to change. Read the full disclaimer.