FRANKFURT (Reuters) -German exchange operator Deutsche Boerse said on Tuesday it posted a better-than-expected 10% rise in second-quarter net profit, helped by volatility in financial markets that generate trading revenue. The company said it should “significantly exceed” its targets for 2022 as volatility continues and interest rates rise. Net profit attributable to shareholders was 341 million euros ($345.19 million), up from 311 million euros a year ago, the company said. Analysts had expected a profit increase of 5.9%. “Inflation, interest rates, volatility – the financial market environme…