Magnificent 7 profits now exceed almost every country in the world. Should we be worried?

The so-called "Magnificent 7" now wields greater financial might than almost every other major country in the world, according to new Deutsche Bank research.

The meteoric rise in the profits and market capitalizations of the Magnificent 7 U.S. tech behemoths — Apple, Amazon, Alphabet, Meta, Microsoft, Nvidia and Tesla — outstrip those of all listed companies in almost every G20 country, the bank said in a research note Tuesday. Of the non-U.S. G20 countries, only China and Japan (and the latter, only just) have greater profits when their listed companies are combined.

Deutsche Bank analysts highlighted that the Magnificent 7's combined market cap alone would make it the second-largest country stock exchange in the world, double that of Japan in fourth. Microsoft and Apple, individually, have similar market caps to all combined listed companies in each of France, Saudi Arabia and the U.K, they added.

However, this level of concentration has led some analysts to voice concerns over related risks in the U.S. and global stock market.

Jim Reid, Deutsche Bank's head of global economics and thematic research, cautioned in a follow-up note last week that the U.S. stock market is "rivalling 2000 and 1929 in terms of being its most concentrated in history."

Deutsche analyzed the trajectories of all 36 companies that have been in the top five most valuable in the S&P 500 since the mid-1960s.

Reid noted that while big companies eventually tended to drop out of the top five as investment trends and profit outlooks evolved, 20 of the 36 that have populated that upper bracket are still in the top 50 today.

"Of the Mag 7 in the current top 5, Microsoft has been there for all but 4 months since 1997. Apple ever present since December 2009,