https://www.theguardian.com/business/2021/dec/31/stock-markets-2021-big-tech-crypto-takeovers > The biggest moments of a year when shares rallied to record levels and deal-making soared > The financial markets climbed a wall of worry through 2021, as investors drove up asset prices in the face of persistently high inflation, a global supply chain crisis and one of the most frenzied speculative booms in decades.