Interest - rate risk is generally greater, however, for longer - term bonds and convertible securities whose underlying stock price has fallen significantly below the conversion price. (putnam.com)
However, put option prices and underlying stock prices tend to have a negative correlation. (investopedia.com)
Vanguard Group, the fastest - growing U.S. investment manager in recent years, has green - lighted blockchain - based experiments to more efficiently update the firm's index funds as underlying stock prices change. (thinkadvisor.com)