This demand feature bridges the gap between borrowers and lenders. It allows governments to issue the long-term bonds they prefer, while making that debt eligible for purchase by money funds that must invest in short-term securities. Sound like the SIVs we discussed earlier? VRDNs are like SIVs in many respects, but with some key differences. First, there is generally less concern about the credit quality of the bonds in a VRDN than the securities held in a SIV—governments are usually pretty good payers. Second—and most importantly—the credit guarantees and put options in a VRDNare provided by independent, high quality financial institutions, meaning that VRDN holders are not dependent on the.