I found this report of the Pew Research Center about the rates of intermarriage in America. Hispanics have been described by scholars like Samuel Huntington as a group that is unwilling to assimilate to mainstream America. Is therefore interesting to learn that 26% of Hispanics marry a spouse outside their ethnic group (remember that Hispanics can be of any race) and is also interesting that White Non-Hispanic/Hispanic is the most common pairing in intermarriage statistics with a notable 41%.
Also if you read the report you will notice that Hispanic males and females intermarry in virtually the same rates.