Add training workflow, datasets, and runbook
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the LEAPS 60 call delta is about 0.77. This disparity continues as XYZ
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moves higher.
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Perhaps Susanne had implied volatility (IV) on her mind as well as time
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decay. These long-term ATM LEAPS options have vegas more than three
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times the corresponding May’s. If IV for both the May and the LEAPS is at
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a yearly low, LEAPS might be a better buy. A one- or two-point rise in
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volatility if IV reverts to its normal level will benefit the LEAPS call much
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more than the May.
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Theta, delta, gamma, and vega are typical considerations with most
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trades. Because this option is long term, in addition to these typical
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considerations, Susanne needs to take a good hard look at rho. The LEAPS
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rho is significantly higher than that of its short-term counterpart. A one-
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percentage-point change in the interest rate will change Susanne’s P&(L) by
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$0.64—that’s about 8.5 percent of the value of her option—and she has
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nearly two years of exposure to interest rate fluctuations. Certainly, when
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the Federal Reserve Board has great concerns about growth or inflation,
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rates can rise or fall by more than one percentage point in one year’s time.
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It is important to understand that, like the other greeks, rho is a snapshot
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at a particular price, volatility level, interest rate, and moment in time. If
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interest rates were to fall by one percentage point today, it would cause
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Susanne’s call to decline in value by $0.64. If that rate drop occurred over
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the life of the option, it would have a much smaller effect. Why? Rate
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changes closer to expiration have less of an effect on option values.
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Assume that on the trade date, when the LEAPS has 639 days until
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expiration, interest rates fall by 25 basis points. The effect will be a decline
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in the value of the call of 0.16—one-fourth of the 0.638 rho. If the next rate
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cut occurs six months later, the rho of the LEAPS will be smaller, because it
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will have less time until expiration. In this case, after six months, the rho
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will be only 0.46. Another 25-basis-point drop will hurt the call by $0.115.
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After another six months, the option will have a 0.26 rho. Another quarter-
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point cut costs Susanne only $0.065. Any subsequent rate cuts in ensuing
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months will have almost no effect on the now short-term option value.
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