Snowflake stock closed up 36% on Thursday, its best day ever, after the company boosted guidance and announced an AI compute deal with Amazon (Samantha Subin/CNBC)

<a href="https://www.cnbc.com/2026/05/28/snowflake-snow-software-stock-rally.html"><img align="RIGHT" border="0" hspace="4" src="http://www.techmeme.com/260528/i55.jpg" vspace="4" /></a> <p><a href="https://www.techmeme.com/260528/p55#a260528p55" title="Techmeme permalink"><img height="12" src="http://www.techmeme.com/img/pml.png" style="border: none; padding: 0; margin: 0;" width="11" /></a> Samantha Subin / <a href="http://www.cnbc.com/">CNBC</a>:<br /> <span style="font-size: 1.3em;"><b><a href="https://www.cnbc.com/2026/05/28/snowflake-snow-software-stock-rally.html">Snowflake stock closed up 36% on Thursday, its best day ever, after the company boosted guidance and announced an AI compute deal with Amazon</a></b></span>&nbsp; &mdash;&nbsp; Software stocks popped on Thursday after Snowflake said it plans to spend $6 billion on compute from Amazon and topped earnings estimates on artificial intelligence momentum.</p>