It was the Trump slump that never was.

Critics sobbed that the sky would fall following the Nov. 8, 2016, presidential election, predicting that the stock market would tank, ObamaCare enrollment would plummet and international tourism to the Big Apple would shrivel.

The first two predictions have proven false, and now the number of foreign tourists traveling to New York City is projected to jump 3.6 percent this year.

In February, doomsday prophets from NYC & Co., the city’s privately run tourism agency, said international tourism would plummet by 300,000 visitors this year due to President Trump’s “travel ban and related rhetoric.”

“The Europeans start coming to New York around Easter and continue through summer,” NYC & Co. CEO Fred Dixon claimed in February. “That’s when you’ll see the rhetoric out of Washington really having an impact on travel.”

But the Big Apple remains the top destination of any hot spot in North and South America — with foreign tourism expected to spike from 12.65 million visitors in 2016 to 13.1 million in 2017, according to a report issued Tuesday by market-research firm ­Euromonitor International.

NYC & Co. declined to comment.

Meanwhile, major hedge fund Bridgewater Associates, Citigroup and Goldman Sachs predicted Wall Street doom if Trump reached the White House.

“If Donald Trump were to win, that outcome would have been unexpected and thereby may cause a jump in the equity-risk premium,” Citigroup analyst ­Tobias Levkovich said.

A year later, the Dow Jones industrial average has rocketed nearly 25 percent from 18,329 in October 2016 to 23,461 as of Thursday. The S&P 500 has surged roughly 21 percent.

Hand-wringers also feared that ObamaCare enrollment would tank following Trump’s pledges to repeal and replace the program and his administration cutting program marketing.

But the first four days of ObamaCare open enrollment on Nov. 1-4 saw 601,462 Americans sign up on federal exchanges, according to figures released Thursday by the Centers for Medicare and Medicaid Services.

The center could not provide a direct comparison to the four-day window in 2016, but the 600,000 figure is on pace to top the 1 million sign-ups in the first 12 enrollment days last year.