In what it claims to be an Australian first, nabtrade clients will be able to watch all securities market price changes in real-time without the need to refresh their web browsers.Cliff Richards, nabtrade's head of digital, said investors and traders of all kinds are increasingly demanding the best technology and services, including this dynamic data service.Dynamic data, also known as real-time streaming data, means that every single ASX stock price change that occurs is 'pushed' in real-time to a user's display or browser.NAB said the benefits for customers included: no need to refresh their browser for up-to-date security/stock prices from the ASX; no delayed price data displays - traditionally, online brokers delayed some prices by 20 minutes to lower the costs they needed to pay to the ASX; and no need to download additional software or Java engines to view dynamic data.