Former IMF chief Rodrigo Rato and all other defendants put on trial on accusations of fraud and falsifying the books in the 2011 stock listing of Spain's Bankia bank were acquitted on Tuesday. The court said bank's stock listing had received approvals "from all necessary institutions". The listing was very popular among small investors, who lost their shirts when the Spanish state had to nationalise the bank the following year and inject 22 billion euros to keep it from collapsing. emi/rl/txw