The ad tech company delivered a stellar fourth quarter, and is poised for revenue growth in 2024.In 2024, digital advertising is forecasted to grow 13% over last year, and account for nearly 70% of global ad spending. This is good news for ad tech firm PubMatic (PUBM -5.21%).In fact, the advertising industry's strong growth is already helping the company. PubMatic experienced a phenomenal fourth quarter, sending its stock to a 52-week high of $24.19 on April 4.Shares have dipped since then, so is now the ti ...