Package org.jquantlib.instruments

Examples of org.jquantlib.instruments.StrikedTypePayoff.optionType()

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            Nx_1 = (muG > Math.log(payoff.strike()) ? 1.0 : 0.0);
            nx_1 = 0.0;
        }
        greeks.vega = forwardPrice * riskFreeDiscount * ( (dmuG_dsig + sigG * dsigG_dsig)*Nx_1 + nx_1*dsigG_dsig );

        if (payoff.optionType() == Option.Type.Put) {
            greeks.vega -= riskFreeDiscount * forwardPrice * (dmuG_dsig + sigG * dsigG_dsig);
        }

        /*@Time*/ final double tRho = rfdc.yearFraction(process.riskFreeRate().currentLink().referenceDate(), a.exercise.lastDate());
        greeks.rho = black.rho(tRho)*timeSum/(N*tRho) - (tRho-timeSum/N) * r.value;
 
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        final double /*@Real*/ spot = process.stateVariable().currentLink().value();
        QL.require(spot > 0.0, "negative or null underlying given"); // TODO: message
        final double /*@Real*/ forwardPrice = spot * dividendDiscount / riskFreeDiscount;
        final BlackCalculator black = new BlackCalculator(payoff, forwardPrice, Math.sqrt(variance), riskFreeDiscount);

        if (dividendDiscount>=1.0 && payoff.optionType()==Option.Type.Call) {
            // early exercise never optimal
            r.value                     = black.value();
            greeks.delta            = black.delta(spot);
            moreGreeks.deltaForward = black.deltaForward();
            moreGreeks.elasticity   = black.elasticity(spot);
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            final double /*@Real*/ forwardSk = Sk * dividendDiscount / riskFreeDiscount;
            final double /*@Real*/ d1 = (Math.log(forwardSk/payoff.strike()) + 0.5*variance)/Math.sqrt(variance);
            final double /*@Real*/ n = 2.0*Math.log(dividendDiscount/riskFreeDiscount)/variance;
            final double /*@Real*/ K = -2.0*Math.log(riskFreeDiscount)/(variance*(1.0-riskFreeDiscount));
            double /*@Real*/ Q, a;
            switch (payoff.optionType()) {
            case Call:
                Q = (-(n-1.0) + Math.sqrt(((n-1.0)*(n-1.0))+4.0*K))/2.0;
                a =  (Sk/Q) * (1.0 - dividendDiscount * cumNormalDist.op(d1));
                if (spot<Sk)
                    r.value = black.value() + a * Math.pow((spot/Sk), Q);
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            sb.append("    tol ").append(values[i].tol); // .append('\n');

            if (error<=tolerance) {
                QL.info(" error="+error);
            } else {
                fail(exercise + " " + payoff.optionType() + " option with " + payoff + " payoff:\n"
                        + "    spot value:       " + values[i].s + "\n"
                        + "    strike:           " + payoff.strike() + "\n"
                        + "    dividend yield:   " + values[i].q + "\n"
                        + "    risk-free rate:   " + values[i].r + "\n"
                        + "    reference date:   " + today + "\n"
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