AI-themed exchange-traded funds (ETFs) are witnessing a significant surge as asset managers capitalize on the growing enthusiasm surrounding artificial intelligence. This year, over one-third of the two dozen AI-focused ETFs were launched, according to Morningstar. What Happened: In the past week alone, three new ETFs have entered the AI sector, including one that was rebranded to specifically focus on artificial intelligence, Reuters reported on Monday. The total assets of AI ETFs have now reached $4.5 billion, approaching the $5.5 billion held by nuclear power-themed ETFs and surpassing the …