Amazon.com Inc. (NASDAQ:AMZN) is adding fuel to the latest round of Marvell Technology Inc. (NASDAQ:MRVL) mania.

MRVL stock is moving. See the chart and price action here.

Amazon's Q1 13F filing shows the hyperscaler increased its stake in Marvell, a notable vote of confidence in one of the chip names sitting at the center of the AI infrastructure buildout.

Amazon purchased 170,924 MRVL shares in Q1, bringing its total stake to 396,352 shares at a value of $39.26 million.

The move comes as investors continue hunting for the next beneficiaries of Big Tech's massive spending on custom silicon, networking and data-center capacity.