Silver jumped to a record, surpassing a peak set during a historic squeeze in the London market in October. Spot prices surged as much as 4.2% to about $55.66 an ounce. The white metal has been supported by rising hopes of a Federal Reserve interest-rate cut in December, inflows into bullion-backed exchange-traded funds and ongoing supply tightness. Most Read from Bloomberg Friday also saw erratic price moves and thin liquidity in the silver market, after a chaotic hours-long halt to trading in futures ...