By default when you open the BMA Curve page the system displays the market data for the market data cut-off set in the pricing page from which it was opened.
In this page you can then edit each interest rate as required. You can do any or all of the following:
Edit each interest rate individually. After you manually edit a value in the yield curve, the background of that field turns blue.
Copy and paste interest rates within the yield curve. After you do this the background of each field with a pasted rate turns blue. For more information see Copying & Pasting Data in the BMA Curve.
Shift the rates for all tenors up or down by the same basis points. You do this entering a number in the Shift Yield Curve By field, using the + <> - toggle button to indicate if you want to shift the interest rates up or down, and then clicking the Calculate button. After you do this it is noted in the page that you have shifted the yield curve by the defined amount.
After making any changes, you can then tell the system to freeze the rates, that is, to use the edited rates until further notification. You do this by clicking the Accept button. Once you click the Accept button the rates are frozen, as noted in the screen. This lets you see at a glance that the rates being used are frozen. The frozen rates are then used in the pricing pages until you do one of the following:
Click the Refresh button in the BMA Curve page.
Click the Refresh button in the Single Option page or the Portfolio page.
Log out of the session.
If as a result of your changes any of the rates are now invalid, they will be displayed in red. For more information on invalid rates in the yield curve see Understanding the Colors Used for Rates in a Yield Curve.
To keep your edited yield curve you must save it into the SD-IR Explorer window. For more information see Saving a BMA Curve.
To manually edit an interest rate in the BMA Curve page:
| 1. | Access the BMA Curve page. |
| 2. | Select the rate interest you want to edit and enter the new value. |
| 3. | Click outside the cell. The call is highlighted in blue. |
| 4. | To instruct the system to use the edited data displayed in this page in all calculations as relevant (instead of the system data) until instructed otherwise, click Accept. |
| 5. | Click OK. |
To shift all the interest rates in the BMA Curve page:
| 1. | Access the BMA Curve page. |
| 2. | In the Shift Yield Curve By field enter the amount in basis points by which you want to shift each interest rate. |
| 3. | Click the Calculate button to shift the interest rate for each tenor. |
| 4. | To instruct the system to use the edited data displayed in this page in all calculations as relevant (instead of the realtime market data) until instructed otherwise, click Accept. This action automatically shifts the interest rates as well if necessary. |
| 5. | Click OK. |