What is YTM, Yield to first Call, Spread to Maturity

What is YTM, Yield to first Call, Spread to Maturity? Bond Matures on a SATURDAY Page 1/1 Yield and Spread Analysis 93 Buy 17.842/98.214 5.291/5.241 Sell D Yield & Spread"' j Graphs OfPkidngn Description Custom Calls Settlement Date WC (737446AKO) field to Maturity Yield to Custom Yield to Next Call Yield to Worst Call price Date May be called anytime starting 08/15/2021 ate 08/15/21 08/15/22 08/15/23 08/15/24 08/15/25 08/15/26 rice 102.5000 101.6667 100.8333 100.0000 100.0000 100.0000 'eld 9470 5.6427 5.4372 5.2909 5.2627 5,2406 price reas 1.782 1.975 2.145 2.266 2.346 2.426 Blend a Full Screen Yield pr Dur 3.877 4.630 5.344 6.023 6.667 7.281 isk 3,908 4 667 5.387 6.071 6.721 7,339