Hello, this is Leonie Kidd writing to you from London. Welcome to another edition of CNBC's Daily Open. A one-page document has had a huge impact on markets over the last 24 hours. The reported memorandum is the latest development in the peace talks between Iran and the U.S., and has sparked optimism across global stocks despite its size and assumed scope. But with more record rallies for major indices, investors are still choosing to see the bright side. Iran is reviewing a U.S. peace proposal