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Taken from CNBC’s Daily Open, our international markets newsletter — Subscribe today

Artificial intelligence (in other words, “OpenAI and the companies in its ecosystem”) has been turbocharging stock markets since ChatGPT was released in 2022.

The clearest example of the sustained rally we’ve been enjoying: In recent weeks, the S&P 500

basically hit a record close each time the index rises — even if it’s a miniscule 0.05% tick upwards.