AI‑focused companies have collectively secured more than $200 billion of fresh financing in the second half of 2026, even as the PHLX Semiconductor Sector index – a proxy for AI‑related hardware – lost roughly a quarter of its value since June. The surge in borrowing, reported by Protos, reflects a rapid shift from equity‑driven growth to cash‑intensive capital raises as share prices tumble.

Scale of the financing wave

According to the Protos report, Oracle alone filed $20 bn of debt and equity offerings this week, adding to Meta’s record‑shattering $95 bn financing plan announced earlier in the year. Microsoft re‑entered the US bond market with a $25 bn issuance on Oct. 29, its first major US debt sale in nine years. In the span of a single week, Alphabet (Gemini AI), SpaceX (Grok AI), Meta (Meta AI), Microsoft (CoPilot AI) and Oracle disclosed $129 bn of combined financing, underscoring the breadth of the capital‑raising push.

Stock performance and investor sentiment

The financing surge coincides with a steep decline in AI‑related equities. The SOXQ ETF, which tracks the PHLX Semiconductor Sector, recorded a 27% drop since June 30. Year‑to‑date, AI hyperscalers have borrowed at least $214 bn, a 157% increase over the $83 bn raised across all of 2025. Individual stock declines are stark: Oracle is down 55% from its peak, Meta 22%, Alphabet 31% and Nvidia 17%.

Credit risk and convertible debt

While the influx of capital supports massive AI compute and infrastructure spend, it also raises credit concerns. CoreWeave, a Jensen Huang‑backed AI cloud provider, issued an additional $4.2 bn of convertible debt in September, pushing its total debt above $35 bn. Five‑year credit default swaps on CoreWeave breached the 1,000‑basis‑point threshold in October, indicating heightened default risk. Nebius closed a $5.75 bn convertible sale in August, describing it as one of the largest of its kind. UBS calculations place off‑balance‑sheet obligations for AI hyperscalers near $3.5 trillion when all commitments are considered.

What to watch next

Analysts will monitor whether the newly raised capital translates into sustained AI compute capacity or merely funds short‑term cash burn. Credit spreads on AI‑focused lenders, especially those with high convertible exposure, will be a key barometer of market confidence. Finally, the impact of these financing moves on future equity valuations remains uncertain, as investors weigh the benefits of expanded AI infrastructure against the growing leverage load on the sector.