Updated 5:20 p.m.
Massachusetts gambling regulators are reporting MGM Springfield generated $9.5 million from gambling operations in its first week open.
The state Gaming Commission said in a revenue report Monday the casino earned $2.1 million in gross revenues from table games and $7.3 million from slot machines from its August 24 opening to August 31.
That translates to about $2.4 million in state revenues.
Massachusetts assesses a 25 percent tax on the hotel, casino and entertainment complex's gambling revenues.
If revenues keep that pace, the casino would take in about $430 million in a year. A state contractor projected MGM would see $500 million in annual gambling revenue, but not until its third year.
In a statement, MGM Springfield's president said the report shows a "tremendously successful" opening week, but cautioned that it only reflects a snapshot of the casino's early performance.
A measured tone is probably a good idea for now. The state's first legal casino, the Plainridge Park slots parlor, saw revenues dip by nearly 40 percent from its first full month (July 2015) to its sixth.
Sean Teehan contributed to this report, which includes information from The Associated Press.
Disclosure: MGM has purchased underwriting from New England Public Radio publicizing the company's non-gambling activities. The NEPR newsroom operates independently of the station's development department, and editorial decisions are made without regard to any funding relationships.