None of the three big indexes marked a feat worth hailing on Friday: the S&P 500 closed flat, the Dow Jones Industrial Average finished slightly lower, and the Nasdaq Composite ticked a smidge higher.

Although most stocks made forward progress in January, a few of them bucked the bigger trend for understandable reasons.

The Invesco QQQ Trust ( QQQ 0.13%) tracks the Nasdaq-100, and it's a popular exchange-traded fund (ETF) for many ...

In early trading on Monday, shares of The Trade Desk topped the list of the day's best performing components of the Nasdaq 100 index, trading up 4.5%. Year to date, The Trade Desk registers a 4.3% ...

The Nasdaq-100 should not be confused with the Nasdaq Composite® Index. The Nasdaq Composite Index represents every company ...

TradeTalks broadcasts covering the Nasdaq-100 Index (NDX) featuring conversations with top industry thought leaders on the latest trends, news and education. Mark Marex, Senior Director of Index ...

In early trading on Tuesday, shares of Palantir Technologies topped the list of the day's best performing components of the Nasdaq 100 index, trading up 24.7%. Year to date, Palantir Technologies ...

In early trading on Wednesday, shares of CDW topped the list of the day's best performing components of the Nasdaq 100 index, trading up 5.7%. Year to date, CDW registers a 21.0% gain. And the ...

On January 31, 1985, Nasdaq launched the Nasdaq-100 Index® (NDX®) a new, technology, and innovation-focused index tracking 100 of the largest non-financial companies listed on the Nasdaq Stock ...

In early trading on Monday, shares of Idexx Laboratories, topped the list of the day's best performing components of the Nasdaq 100 index, trading up 10.3%. Year to date, Idexx Laboratories ...

In early trading on Thursday, shares of AstraZeneca topped the list of the day's best performing components of the Nasdaq 100 index, trading up 4.4%. Year to date, AstraZeneca registers a 13.0% gain.

But that wasn't the case for all of them. While the Nasdaq-100 index advanced 2.2% in January, a handful of its constituents (including a market favorite) lost quite a bit of ground. Here they are ...