May 8 (Reuters) - Robinhood Markets ( HOOD ) reported a

profit in the first quarter compared with a loss last year,

helped by rate hikes that boosted the online brokerage's net

interest revenue.

Profit was $157 million or 18 cents per share for the three

months ended March 31, compared with a loss of $511 million or

57 cents per share a year ago, the company said on Wednesday.