This is your methodology which you stated earlier:
"lognormal is used for pricing the options (ie. calculating the premium), and normaldist is used for FairPUT computations. This is the correct method, as I first tried hard with the lognormal but failed b/c as soon as you add risk-free-rate and/or dividends then it doesn't work with lognormal... So, I'm convinced this method is the correct method."
You can't use the normaldist function for put computations because stock prices can't go negative.
"lognormal is used for pricing the options (ie. calculating the premium), and normaldist is used for FairPUT computations. This is the correct method, as I first tried hard with the lognormal but failed b/c as soon as you add risk-free-rate and/or dividends then it doesn't work with lognormal... So, I'm convinced this method is the correct method."
You can't use the normaldist function for put computations because stock prices can't go negative.
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