Pensions funds, etc., lots of buyers, even of 10yr bonds yielding 0%.
Note that as yields have fallen, bond prices rise, so these buyers have done well.
So as interest rates have fallen, paradoxically the demand for bonds is going up in expectation that interest rates will keep falling, thereby increasing the value of the bonds already bought !!!! IS THIS NOT VERY DANGEROUS.
Is this the madness that happens in any bubble, Is the bond market really a bubble about to burst, what about all those pensioners about to draw down those pensions stuffed with way overpriced bonds.