LinkedIn (NYSE:LNKD.DL) stock is off more than 8% since the company reported third-quarter earnings late last month. Why? Skeptics appear to be overlooking a key statistic, Fool contributor Tim Beyers says in the following video.

Engagement, specifically. Member page views grew an astounding 72% in the third quarter. Unique visiting members grew 49% over the same period. The message? LinkedIn is drawing more serious users, more often, resulting in growth across the business.

Both revenue and profit matter, of course, and both grew substantially in the third quarter. But if LinkedIn is going to become a sustainable enterprise with an installed base it can protect and grow, then it must find ways to continually boost engagement. So far, management's formula is working.

So should you buy LinkedIn stock at current prices? Tim answers this question and more in the video. Please watch now and then leave a comment to let us know what you think.