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The Standard Portfolio Analysis of Risk, or SPAN, is a system for calculating margin requirements for futures and options on futures. It was developed by the Chicago Mercantile Exchange in 1988. SPAN is a portfolio margining method that uses grid simulation.
%If Unchanged Potential Return = (call option price - put option price) / [stock price - (call option price - put option price)] For example, for stock JKH purchased at $52.5, a call option sold for $2.00 with a strike price of $55 and a put option purchased for $0.50 with a strike price of $50, the %If Unchanged Return for the collar would be:
The value of the option is 14¢, so this is the premium margin. The exchange has calculated, using historical prices, that the option value will not exceed 17¢ the next day, with 99% certainty. Therefore, the additional margin requirement is set at 3¢, and the investor has to post at least 14¢ (obtained from the sale) + 3¢ = 17¢ in his ...
Portfolio margin is a risk-based margin policy available to qualifying US investors. The goal of portfolio margin is to align margin requirements with the overall risk of the portfolio. Portfolio margin usually results in significantly lower margin requirements on hedged positions than under traditional rules.
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With the salary option, you can pay yourself just as you would your employees — including withholding taxes. The salary method is more stable, as you can set up weekly, biweekly, or monthly ...
Here the price of the option is its discounted expected value; see risk neutrality and rational pricing. The technique applied then, is (1) to generate a large number of possible, but random, price paths for the underlying (or underlyings) via simulation, and (2) to then calculate the associated exercise value (i.e. "payoff") of the option for ...
For example, the delta of an option is the value an option changes due to a $1 move in the underlying commodity or equity/stock. See Risk factor (finance) § Financial risks for the market . To calculate 'impact of prices' the formula is: Impact of prices = option delta × price move; so if the price moves $100 and the option's delta is 0.05% ...