International ratings agency Standard & Poor's affirmed the United States' investment-grade 'AA+/A-1+' rating on Wednesday, a day after the presidential election, while maintaining its stable outlook, Reuters reported.

“We assume the longstanding institutional strengths and robust checks and balances of the U.S. will support policy execution in a Trump administration, despite the president-elect's lack of experience in public office, which raises uncertainty on policy proposals,” the ratings agency said.

S&P also added that it would raise the rating if it saw evidence that efforts point to more proactive fiscal and public policies that result in a lower debt burden.