$Chewy, Inc.(CHWY)$ s stock rose 5.92% in premarket trading and closed -1.07% after a mixed earnings announcement. Here are the key highlights:RevenueNet Sales: $3.25 billion, up 14.9% year over year. This exceeded the Zacks Consensus Estimate of $3.196 billion.Autoship Program: Sales from the Autoship program increased by 21.2% year over year, accounting for 80.6% of Q4 net sales.ProfitabilityAdjusted EBITDA: $124.5 million, up 44% year over year. The adjusted EBITDA margin expanded by 70 basis points to 3.8%.Gross Margin: 28.5%, up 30 basis points year over year. This was driven by improvements in product mix and sponsored ads.Net Income: $22.8 million, down nearly 29% year over year. This decline was due to higher projected costs.Customer Metri