​​​​Which AI bubble burst? Semiconductor stocks paint clearest bullish rebound signal

SOXX rose 2.85% to $491 on October 26, closing about 4% above its 200-day moving average of $472.90 after the Philadelphia Semiconductor Index fell 24% from its June record and its nine-day RSI reached 21.5; weakness in chipmakers on October 27 left the rebound fragile. Industry earnings grew 131% in Q2 2026, while VanEck estimated 2026 capex by the five largest U.S. hyperscalers at $844 billion, up 81% year over year, sharpening concerns about valuations, cash flow and returns on AI investment.

Analysis

The key risk is not near-term chip demand but the conversion of hyperscaler capex into durable cash returns. Strong sector earnings can coexist with falling share prices if investors lower the multiple they will pay for each dollar of earnings; thus, earnings beats alone may not restore the trade. A slowdown in capex growth could hit chip suppliers before AI adoption itself slows, creating operating leverage against semiconductor revenues. Conversely, sustained spending can support orders while still failing to justify current expectations.

META’s proposed equity funding, if completed, would reduce reliance on debt for its investment plan but shift part of the financing cost to shareholders through dilution; it is not evidence that AI spending will earn adequate returns. Anthropic’s IPO filing is a sentiment catalyst, not proof of incremental chip demand or customer economics.

Near term (days), the bounce is vulnerable to positioning-driven reversals. Over 1–3 months, hyperscaler capex guidance, funding choices and evidence of AI revenue conversion matter more than oversold readings. Over 6–18 months, returns on data-center investment and borrowing costs determine whether chip demand is durable or pulled forward. The setup is asymmetric around SOXX’s stated 200-day average: a decisive close below $472.90 would invalidate the support thesis; holding it is necessary, but not sufficient, for a sustained recovery. The contrarian point is that earnings strength is not a valuation floor when expectations and capital intensity remain elevated.

Key Decisions for Investors

• Avoid chasing the relief rally; consider adding broad semiconductor exposure only after SOXX reclaims recent short-term highs and holds them. The breakout level is not provided, so verify it against current prices before placing orders.
• Use a close below SOXX $472.90 as a risk trigger: reduce beta or consider a defined-risk SOXX put spread rather than relying on the 200-day average to hold. Reassess if the ETF recovers and sustains above that level.
• Over the next 1–3 months, track hyperscaler capex guidance, AI-related revenue conversion, and financing mix. Treat deceleration in planned spending or rising funding costs as a warning for NVDA, MRVL and broader chip exposure; do not infer company-specific earnings sensitivity from sector data alone.
• Treat META’s proposed stock sale and the Anthropic IPO filing as sentiment/funding signals, not demand confirmation. Revisit the thesis if subsequent disclosures show capex translating into measurable revenue and cash returns; otherwise, the risk of multiple compression remains even with strong reported chip earnings.