We break down the biggest gainers and droppers in the Cheddar 50 index this year, plus one Japanese stock that's made a big splash in the U.S. in 2017.
On the plus side, shares of Square have risen about 160 percent this year as the digital payment company has expanded into new markets. And video game maker Take-Two Interactive has also more than doubled in 2017, as investors and fans both await the release of Red Dead Redemption 2 this spring.
But they weren't all winners. Pandora shares were down more than 60 percent as the music streaming service struggled to grow paying subscribers. And Blue Apron stock has dropped as much as 70 percent since its IPO in late June, losing its CEO and cutting jobs.
Plus, what about Japan's SoftBank? The tech holding company launched its $100 billion Vision Fund, which has made investments in Nvidia, WeWork and Flipkart. And we're still waiting for what could be a $10 billion investment in Uber.
Adidas said it might have to write off the remaining 300 million euros ($320 million) worth of Yeezy shoes left unsold after it cut ties with rapper Ye, formerly known as Kanye West.
Ivanka Trump began testifying Wednesday in the civil fraud trial that is publicly probing the Trump family business, making an appearance she tried to prevent.
Walmart announced it's looking to create a calm morning shopping experience by turning TV walls to static non-moving images, silencing radios, and dimming store lights.
Biotech company Biogen lowered its full-year profit forecast, citing higher costs related to its purchase of drug maker Reata Pharmaceuticals as well as the launch of its Alzheimer's drug.