Taken from CNBC’s Daily Open, our international markets newsletter — Subscribe today Hello, this is Leonie Kidd writing to you from London. Welcome to another edition of CNBC's Daily Open. Not only has the S&P 500 erased all its declines since the onset of the Iran war, it is now nearing an all-time high. The back-to-back gains for equities in major markets come amid growing optimism that another round of talks between the U.S. and Iran could yield more progress towards a long-term peace