Why is Alphabet (GOOG) stock falling today?

Alphabet (GOOGL) shares fell approximately 1.7% on Tuesday as surging crude oil prices, climbing Treasury yields, and emerging concerns over long-term AI demand weighed heavily on mega-cap technology stocks. With the benchmark 10-year US Treasury yield hitting its highest level since 2007 and markets pricing in a 93% likelihood of an upcoming Federal Reserve interest rate hike, rising borrowing costs are putting severe pressure on future cash flow valuations. Investors are growing increasingly cautious about debt-financed artificial intelligence expenditures across the hyperscaler landscape. Alphabet recently sought between $20 billion and $25 billion through multi-tranche bond offerings following its first-ever quarterly negative free cash flow in Q2. Hyperscalers such as Amazon, Meta, Oracle, and Alphabet issued $194 billion in debt through early July—a 79% year-over-year increase—to fund more than $730 billion in expected annual capital expenditures. Compounding macroeconomic headwinds, recent warnings from AI executives regarding technological risks and model development pacing have sparked debate over future infrastructure buildout velocity. Despite the downturn, technical analysts maintain that the broader mega-cap tech basket remains positioned near a pivotal breakout level.