Talk:Greeks (finance)/Archives/2014
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Lambda
Even though it's correct, using lambda as stated does not take into account theta. If you include theta in the equation (and/or look at what actually happens when the price of the underlying changes over a day, by iterating the Black-Scholes Model) you will find that the actual gearing is quite different than the formula in the article seems to imply. As the forwardness of the option approaches infinity, initial theta goes toward zero, and the lambda formula in the article and the 'practical (one day later)' formula will indeed converge. Just beware. 71.139.161.224 (talk) 19:52, 3 October 2014 (UTC)