Wall Street's eye-popping gains should be of great concern to global investors, an analyst told CNBC on Friday.

The Dow Jones industrial average broke above 25,000 on Thursday for the first time, following the release of stronger-than-expected jobs data. In terms of trading days, it was the fastest 1,000-point gain to a round number in the Dow's history. The 30-stock index broke above 24,000 on Nov. 30, 23 trading days earlier. It took the Dow 24 trading days to go from 20,000 to 21,000 last year.

"We're really terrified," Paul Gambles, managing partner at MBMG Group, told CNBC.

When asked why he believed traders should avoid investing in stocks given the "Goldilocks" global growth conditions, Gambles said: "In the first three versions of the Goldilocks story, Goldilocks actually died horribly, and we think that could well happen again [to stocks]."

Gambles said that collective global growth at the level seen through 2017 was the GDP equivalent to a "blow-off top." He added that similar levels of concerted worldwide growth were seen during previous financial crises and therefore the current risk to investors is "exponential."