The markets traded flat during the midday with the Dow easing a point to 17,671 while Nasdaq added 4 points to 4,762 as investors monitored developments in Greece.

On the upside

Bank of America/Merrill Lynch analyst Daniel Heyler named Himax Technologies (Nasdaq: HIMX) as his 2015 top pick in display ICs.

Post Holdings (NYSE: POST) will pay approximately $1.15 billion in cash and stock to purchase MOM Brands.

Shares of Array BioPharma (Nasdaq: ARRY) extended its gains.

On the downside

Shares of The Cushing MLP Total Return Fund (NYSE: SRV) extended its losses.

Warren Resources (Nasdaq: WRES) slashed its 2015 capital budget and cut its production guidance.

Seagate's (Nasdaq: STX) disappointing results sent shares of rival Western Digital (Nasdaq: WDC) tumbling.

In the broad market, advancing issues outpaced decliners by a margin of nearly 7 to 5 on both the NYSE and on Nasdaq. The broader S&P 500 added 2 points to 2054. Bitcoin climbed $21 to $271.