Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of QIWI PLC (NASDAQ:QIWI) fell more than 16% Monday amid broader market unrest as Russia invaded Ukraine

So what: The Moscow Exchange's Micex index fell nearly 11% on the day, so its unsurprising U.S.-listed Russian stocks like QIWI suffered the fallout. Shares of the Russia-based payment services provider are also still up more than 12% after a rapid rise over the past month, which at least partially explains the severity of today's drop.

Now what: QIWI is all set to announce fourth quarter results on March 12, when investors hope the company can reprise last quarter's better-than-expected performance. Even so, I remain hesitant to dive in today given the wider macrco uncertainties surrounding Russia's decision. Until the dust settles and the longer-term repercussions for Russia's economy become more clear, I'm perfectly happy watching QIWI from the sidelines.

This article represents the opinion of the writer, who may disagree with the “official” recommendation position of a Motley Fool premium advisory service. We’re motley! Questioning an investing thesis -- even one of our own -- helps us all think critically about investing and make decisions that help us become smarter, happier, and richer.