Book And Research Paper Forum • Explicit implied vol?

" This paper identifies what appears to be the first explicit formula for Black–Scholes implied volatility, resolving a 50-year-old problem in option pricing. The key observa tion is that the call price can be written as a survival probability of an inverse Gaussian distribution." https://arxiv.org/pdf/2604.24480 Statistics: Posted by Collector — 39 minutes ago