Why is the real, true Fair Values so off from those published by some of those websites out there. What could possibly explain it? Isn't it just plugging in some numbers to a formula.
Programtrading is the best site for fair value calcs.
Program levels will vary because the cost of money varies for each firm that uses it as a trigger. So if you watch carefully you will see programs trigger above and below fair value figures.
Please note: I am talking about program levels, not fair value