Earlier quoted context omitted.
1) Pension funds (and other institutional investors) own government bonds. 2) They have also purchased risk/hedging products and posted these bonds as collateral. 3) As interest rates rise, the value of these bonds fall. 4) As the value of these bonds fall, these institutions are asked to post more collateral. 5) To come up with more collateral, they sell more of their bonds, dropping the price even more. 6) They are…
> 4) As the value of these bonds fall, these institutions are asked to post more collateral. Why do the pension funds (and other institutional investors) need to post collateral? Where do the pension funds post their collateral to? I guess I will understand why collateral is required if you can explain me what would go wrong if the pension funds were not made to post collateral.
They're trading something everyone has to post collateral (a/k/a margin) on. This usually involves leverage, e.g. if they're buying futures [1].
The collateral is there for the broker and clearinghouse to sell if the pension fails to hold up its end of the deal. When the value of the collateral falls, the broker demands more to ensure they're covered.
[1] https://www.cmegroup.com/education/courses/introduction-to-f...