Skepticism that talks with North Korea will yield a nuclear disarmament agreement tempered market enthusiasm. The markets closed modestly higher with the Dow adding 9 points to 24,884. Nasdaq climbed 41 points to 7372.

On the upside

Fourth quarter net income more than doubled by ACM Research (Nasdaq: ACMR).

CommerceHub (Nasdaq: CHUBA) (Nasdaq: CHUBK) will be taken private by GTCR and Sycamore Partners in an all cash deal valued at approximately $1.1 billion.

500.com (NYSE: WBAI) entered a framework agreement with the China Sports Lottery Administration Center to jointly develop physical channels to sell sports lottery tickets.

On the downside

GlycoMimetics (Nasdaq: GLYC) reported a greater than expected loss for the fourth quarter.

Investors locked in profits on Infinity Pharmaceuticals (Nasdaq: INFI).

Marinus Pharmaceuticals (Nasdaq: MRNS) reported losses for fiscal years 2016 and 2017.

In the broad market, advancing issues outpaced decliners by a margin of nearly 7 to 3 on the NYSE and by nearly 2 to 1 on Nasdaq. The broader S&P 500 gained 7 points to 2,728. Bitcoin collapsed $761 to $10,794.