What happened

Shares of The Rubicon Project (NASDAQ:MGNI) skyrocketed higher on Tuesday, outpacing the broad stock market's gains by a mile. By 2:30 p.m. EDT, the stock was a full 18% higher, compared to the 2% gain of the S&P 500 benchmark. 

However, there wasn't any news released regarding The Rubicon Project. In the absence of news, it's just speculation, but it appears investors are scooping up shares of this forgotten advertising technology (adtech) stock on increasing optimism of a stabilizing economy.

A businessman rides a rocket ship expelling cash money exhaust over a multi-color bar chart.

Image source: Getty Images.

So what

In the advertising world, The Rubicon Project is a supply-side ad platform, working on behalf of publishers to optimize ad revenue. Companies like The Trade Desk work on the demand side of that exchange. LiveRamp is a middleware company tying together supply-side platforms, demand-side platforms, publishers, and advertisers. Then there's publishers like Roku and Spotify Technology that generate some revenue from advertising.

All of these stocks fell early in the year -- a weak economy reduces advertising spending. But in time, the fear is slowly abating. All the stocks mentioned here have recovered from March lows. Not only that, they're dramatically outperforming The Rubicon Project.

ROKU Chart

ROKU data by YCharts

Even after today's rally, shares of The Rubicon Project are still more than 50% off 52-week highs, underlining the stock's logical consideration as a top value stock

Now what

I don't wish to imply that all of The Rubicon Project's underperformance is due to macro-economic concerns. The stock got hammered in early May after the company guided for a sequential drop in revenue for the upcoming second quarter. That's concerning since its merger with Telaria was recently completed, and one would have expected higher revenue because of the combined financials. 

There's legitimate reason for concern. However, there's also legitimate reason for long-term optimism. Consider that just in the past year, major streaming-video on demand platforms have launched, including Apple TV+, Disney+, and Peacock from NBCUniversal, a Comcast subsidiary. All these new launches are exemplary of the profound shift under way from linear TV to connected TV. 

The Rubicon Project won't count all content publishers among its customers. But as the largest supply-side platform around, it's uniquely positioned to benefit from an industry growing at a healthy pace. You could buy shares hoping for a short-term bounce back to where the stock traded a few months ago. But buying a top company in a growing industry is a much better long-term thesis.