PUBM vs HIO Comparison

PubMatic Inc is a supply-side platform provider in the digital advertising technology market. These platforms help publishers, which supply digital ad inventory, manage their inventory, selling a high percentage of their inventory (increase the ad fill rate) and maximizing revenue per ad sold (optimize yield). The company generates revenue mainly by taking a piece of the ad sales that it enables. Buyers on the platform include intermediary buyers, such as demand-side platforms, or advertisers and ad agencies directly. Geographically, the company generates the majority of its revenue from the United States, followed by EMEA and APAC.

Western Asset High Income Oppor Fd Inc is a diversified closed-end management investment company. The company's primary objective is to seek high current income and the secondary objective is capital appreciation. It invests a majority of its net assets in high-yield corporate debt securities and the rest in common stock equivalents, including options, warrants, and rights. The company invests in securities of companies from various sectors such as energy, technology, utilities, industrials, communications, finance, and capital goods among others.