Internet reports that the world's largest asset manager is increasing its bets on artificial intelligence (AI) in its U.S. model portfolio, while cutting its overall stock exposure due to tariff uncertainty. BlackRock uses the iShares AI Innovation and Tech Active ETF(code BAI) to increase its exposure to AI in its portfolio with a high equity ratio. The actively managed fund attracted approximately US$436 million in inflows on Tuesday, the largest net inflow in a single day since its inception in October last year, and the fund's size has also quadrupled.