MarketAxess (MKTX) shares rallied 6.7% in the last trading session to close at $258.02. This move can be attributable to notable volume with a higher number of shares being traded than in a typical session. This compares to the stock's 5.5% gain over the past four weeks.This marks the second consecutive day of MarketAxess’ price increases. Increased optimism over growing trading volume is driving the company’s stock price higher. Yesterday, it reported robust trading volume growth for August, with strong co ...