Dow Movers: CRM, MRK

In early trading on Monday, shares of Merck topped the list of the day's best performing Dow Jones Industrial Average components, trading up 3.5%.

Year to date, Merck registers a 7.9% gain.

In early trading on Monday, shares of Merck topped the list of the day's best performing Dow Jones Industrial Average components, trading up 3.5%.

Year to date, Merck registers a 7.9% gain.

And the worst performing Dow component thus far on the day is Salesforce.

Om, trading down 2.0%.

Salesforce.

Om is showing a gain of 21.2% looking at the year to date performance.

Two other components making moves today are Microsoft, trading down 1.9%, and JPMorgan Chase, trading up 1.6% on the day.