Weak US jobs data has caused panic in global markets and forced US Treasury yields to fall to yet another record low.
Asian markets fell more than 1% in some regions overnight, with the wider area set for its biggest monthly drop since the financial crisis of 2008.
The latest sale of index-linked 50-year gilts was completed in record time today, as investors snapped up £4bn worth of debt.
Investors can continue to buy 10-year debt issued by safe haven governments in 2012, with the risk of losing vast sums diminished, said Kames Capital's David Roberts.
Schroders' head of global macro Bob Jolly has revealed he is shorting long-dated treasuries and German bunds in the expectation the ongoing economic recovery will reduce demand for safe havens.