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What: Shares of VirnetX Holding Corporation (NYSEMKT:VHC) have skyrocketed today, up 55% as of 11:39 a.m. ET after the company was awarded a major patent victory against Apple (NASDAQ:AAPL).

So what: The jury determined that certain Apple services, such as iMessage and FaceTime, infringe on VirnetX patents and that Apple now owes the patent troll $625.6 million. This is now the second patent victory that VirnetX has claimed over the Mac maker.

Now what: While $625.6 million would only put a modest dent in Apple's cash position, it represents a significant windfall for VirnetX. The smaller company derives all of its revenue from patent licensing and lawsuits as a non-practicing entity (the technical term for a patent troll). For context, VirnetX generated just $1.1 million in total revenue throughout the first three quarters of 2015, resulting in a $21.5 million net loss. This award will help replenish its coffers until its next patent-related windfall.

Evan Niu, CFA owns shares of Apple. The Motley Fool owns shares of and recommends Apple. Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.