Quantitative easing in the eurozone and inelastic demand from institutions have been blamed for the latest bond market rally to catch out some investors.
Warren Buffett's Berkshire Hathaway is looking to issue its first ever euro-denominated bond, according to reports.
Greece has submitted a range of reforms to its European creditors in an attempt to extend its bailout programme.
Single investment region?
Negotiating 'dangerous' markets
Talks between eurozone finance ministers on the future of Greece's bailout have come to a dead end, heightening fears of further market turmoil in case Greece is left with no European support.
The eurozone economy beat growth expectations in the last quarter of 2014, buoyed by a resurgent Germany.
Germany has said it is willing to compromise with Greece on the terms of repaying its bailout debt.
Greece's new left-wing government is pushing for a revision of its EU bailout terms, drawing up a new 10-point plan to replace the existing deal.
Bank of England Governor Mark Carney has warned the eurozone could sink further into its 'debt trap' as austerity measures choke off growth.