A fast-growing business doesn't always make a great stock.Snowflake (SNOW -3.24%) delivered a cleaner, stronger quarter. The artificial intelligence (AI) data cloud company's fiscal second-quarter product revenue rose 32% year over year to $1.09 billion, net revenue retention (NRR) ticked up to 125%, and large-customer metrics improved. Guidance moved higher, too. These are the right kinds of signals when investors are looking for confirmation that the company's extraordinary growth story remains intact.The ...