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Figure 4 | Journal of Inequalities and Applications

Figure 4

From: Call option price function in Bernstein polynomial basis with no-arbitrage inequality constraints

Figure 4

Comparison of the implied volatility curve estimated from the Bernstein polynomial (BP) estimator and the Cubic spline smoothing method. IV mid, IV bid and IV ask are computed from the corresponding mid price, bid price and ask price by inverting equation (28). Results are reported for both of the times to maturity of \(\tau= 30~\mbox{days}\) and \(\tau= 80~\mbox{days}\), respectively.

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