Newton–Raphson Emulation Network for Highly Efficient Computation of Numerous Implied Volatilities

G Lee, TK Kim, HG Kim, J Huh - Journal of Risk and Financial …, 2022 - mdpi.com
In finance, implied volatility is an important indicator that reflects the market situation
immediately. Many practitioners estimate volatility by using iteration methods, such as the …

[PDF][PDF] A generalized derivation of the Black-Scholes implied volatility through hyperbolic tangents

M Mininni, G Orlando, G Taglialatela - Argumenta Oeconomica, 2022 - dbc.wroc.pl
This article extends the previous research on the notion of a standardized call function and
how to obtain an approximate model of the Black-Scholes formula via the hyperbolic …