Core PPI acceleration mainly driven by metals, tariffs, and AI demand

Overview

This Goldman Sachs report analyzes the reasons for the accelerated rise of the US core Producer Price Index (PPI) in 2026, pointing out that it is mainly driven by industrial metal price increases, tariff and export control policies, and AI-related demand. The report expects the inflationary push from these factors to weaken significantly over the next year, but AI-related electricity and electronic component cost pressure may persist longer.

Core views

Core views revolve around three major drivers: Industrial Metal Cost Push: Copper and aluminum prices rose significantly due to global energy storage, solar investment, and EV demand (especially in China), pushing up production costs. Goldman Sachs commodity strategists expect copper prices to fall slightly this year and aluminum prices to drop significantly, reflecting increased capacity and slowing auto and solar demand. Tariff and Export Control Impact: China's early 2025 export controls on rare earths and related products caused price jumps in products relying on these materials, such as medical devices. After the US-China agreement relaxed controls in November 2025, imports normalized, and relevant inflation impulses are expected to reverse over the next year. Persistent Pressure from AI Demand: AI development drove up demand for electricity and key electronic components, leading to higher input costs. PPI software prices were +1% year-over-year over the past year (lower than PCE's +12%) due to statistical method differences, but electronic component and storage battery prices jumped nearly 20% and 7% respectively in 2026, reflecting AI hardware demand pressure. Comprehensive Impact: Over the past year, the three factors pushed up final core goods PPI by about 2 percentage points, expected to contribute about 0.5 percentage points over the next year, mainly due to fading tariff impulses and falling metal prices, though AI-related electricity cost pressure may persist.

Analysis framework

Goldman Sachs employs a decomposition analysis approach, attributing PPI acceleration to identifiable structural drivers and assessing inflation transmission paths via supply chain cost pressure tracking tools. Methodologically: 1) Break down PPI data into intermediate and final goods to identify cost transmission nodes; 2) Combine commodity price forecasts (e.g., copper, aluminum) with policy events (tariffs, export controls) to quantify impacts; 3) Compare PPI and PCE statistical differences to assess measurement bias in AI-related price pressures. The report emphasizes its inflation forecast has incorporated these factors, and supply chain tools show no significant additional inflation pressure currently.

Methodology notes

• Industry/Industrial Analysis FrameworkSupply and Demand Framework

  Industrial metal prices are driven by supply and demand relationships

  The report indicates that copper and aluminum price hikes stem from the interplay between global green energy and EV demand (demand side) and capacity expansion speed (supply side); future price decline expectations are based on judgments of accelerating supply and slowing demand.

• Industry/Industrial Analysis FrameworkUpstream-Midstream-Downstream Supply Chain Transmission

  Input cost pressure transmits along the supply chain to final prices

  The report analyzes how tariffs and export controls transmit from upstream raw materials to midstream producer prices by tracking imported inputs and domestic competing product prices, and assesses their pulse impact on final goods PPI.

• Event Gaming and Behavioral FinanceExpectation Gap/Expectation Management

  Inflation expectations may amplify corporate pricing behavior

  The report notes that if inflation expectations heat up, companies may transfer costs more aggressively, causing core goods inflation stickiness to exceed expectations, which belongs to behavioral finance logic where expectations become self-fulfilling.

Key data

• Core Intermediate Goods PPI YoY5.1%Year-over-year growth over the past year, fastest since 2022.
• Core Final Goods PPI YoY3.6%Year-over-year growth over the past year, fastest since 2022.
• Driving Force of Three Factors on PPI (Past Year)2 percentage pointsExpected to drop to about 0.5 percentage points over the next year.
• PPI Software Prices YoY+1%Past year, lower than PCE's +12%, due to statistical method differences.
• Electronic Components PPI YoY (2026)Nearly 20%Significant jump driven by AI demand.
• Storage Battery PPI YoY (2026)About 7%Driven by AI hardware demand.

Impact & implications

The report believes current PPI acceleration is mainly driven by structural factors, and most impacts have been incorporated into consumer inflation forecasts. If electronic component price increases exceed expectations, the Middle East conflict expands supply disruptions, or inflation expectations heat up, it could cause core goods inflation stickiness higher than expected. Goldman Sachs' supply chain cost tracking tools show that aside from identified factors, there is currently no significant additional inflation pressure.

Risks

• Electronic component input price increases exceeding expectations
• Middle East conflict triggering broader supply chain disruptions
• High inflation expectations prompting companies to raise prices more aggressively

What to watch

• Industrial metal price trends (especially copper and aluminum)
• Changes in US-China export control policies
• Sustainability of AI-related electricity and electronic component costs
• Signals from supply chain cost pressure tracking tools