Amazon Rally Continues Despite Capex Doubts, Valuation Stretched

What happened

Amazon's stock has continued to climb while other big tech names struggled after the November 5 sell-off, extending its outperformance since strong Q2 results that showed AWS revenue up 37% and AWS operating income nearly doubling. The rally comes as the market increasingly prices in AWS's ability to monetize massive AI infrastructure spending, with the company guiding to over $200 billion in annualized capex and disclosing large customer commitments from OpenAI and Anthropic. However, trailing free cash flow remains deeply negative at -$7.6 billion, and management has acknowledged that much of 2026 capex is unlikely to pay off until 2027-2028, making near-term valuation dependent on sustained AWS growth above 30%. The latest article from MarketBeat questions whether AWS can justify the AI spending, echoing the key risk identified in our prior analysis that capacity additions may outpace monetization if demand softens. While the stock's relative strength is notable, the fundamental picture at the current price offers little margin of safety, with the stock trading at roughly 20.5x earnings and 17.7x EBITDA despite negative free cash flow.

Implication

The stock's outperformance in a weak tape suggests market confidence in AWS's AI leadership, but that confidence is already embedded in the valuation, leaving limited upside unless AWS exceeds already elevated growth expectations. Our base case implies a fair value of $265, only modestly above recent prices, and the bear case of $220 remains plausible if AWS growth decelerates below 25% or free cash flow stays negative into 2027. If the stock has risen above the $290 trim threshold, we would recommend taking profits, as the risk/reward has become unfavorable given the lack of near-term free cash flow support. Conversely, a pullback toward $235 would provide a better entry, but only if the upcoming quarterly reports confirm AWS growth above 30% and rising AWS operating income alongside higher infrastructure spend. Overall, maintain a WAIT rating: the business quality and liquidity are strong, but the negative free cash flow and crowded AI narrative argue against adding exposure at current levels.

Thesis delta

Our WAIT rating from September remains appropriate, as the fundamental drivers have not changed despite the further rally in Amazon shares since early September. The stock's continued climb has reduced the margin of safety, moving it closer to the $290 trim level and further above the attractive entry of $235, but there is no new evidence that AWS's AI spending will convert to free cash flow sooner than management's own 2027-2028 timeline. If the stock exceeds $290 on momentum without a corresponding improvement in free cash flow, we would shift to a more defensive stance and recommend trimming.