Calculate the portfolios option adjusted spread Per 1000 par
Calculate the portfolio\'s option adjusted spread:
*Per $1000 par value
| Bond | Maturity | Face Value | Price* | Accrued interest* | Option-Adjusted Spread |
|---|---|---|---|---|---|
| Bond A | 2 years | $3 M | 955 | 11.59 | 125 |
| Bond B | 4 years | $2 M | 975 | 10.75 | 175 |
| Bond C | 5 years | $4 M | 985 | 9.55 | 185 |
| Bond D | 3 years | $1 M | 960 | 13.50 | 145 |
Solution
OAS = 161.35
| Market Value | weight | OAS | weight*OAS | |
| A | 2.87 | 0.2949 | 125.0000 | 36.8631 |
| B | 1.95 | 0.2007 | 175.0000 | 35.1261 |
| C | 3.94 | 0.4056 | 185.0000 | 75.0283 |
| D | 0.96 | 0.0988 | 145.0000 | 14.3284 |
