The operator had previously projected revenue of between $2.4bn and $2.5bn, with adjusted earnings before interest, tax, depreciation and amoritsation (EBITDA) expected to be between $560m and $580m.
However, it has now downgraded the revenue figure to between $2.2bn and $2.4bn, while EBITDA projections are now between $535m and $550m.
This, it said, was due to results so far this year, as well as foreign exchange movements and lower expectations in Atlantic City.