Kilambi News
Tuesday, October 13, 2026

Why markets moved overnight

Tuesday, October 13, 2026 · Updated Oct 13, 2026 07:08

Miner and chip stocks led a broad risk-off session, with rare earth miners down 4.58% and Asian chip names routed for a second day, while crude fell on the prospect of Russian diesel returning to market.

Why it matters: The selloff is concentrated in the AI supply chain and the miners rather than in rates, where yields barely moved, so today's question is whether the chip repricing spreads or stays a memory-stock event.

Data as of Market close Monday, October 12, 2026

Rare earth miners fell 4.58%, the largest move in the tables, and uranium miners fell 3.03% and lithium and battery names 1.95%. The falls came even as gold rose 0.45% to $4,209.50 an ounce and copper rose 0.93%, and despite Lynas presenting its Brazil rare earth separation plant plan today (see today’s Lynas story). This morning’s mining reporting flags the divergence directly: every miner basket fell while the underlying metals rose, a broad miner weakness with no single-name driver identified.

Semiconductors fell 2.6% and Broadcom fell 1.88%, extending the Asian chip rout that led the session. South Korea’s Kospi closed down 5.46% after China’s CXMT claimed a DRAM architecture breakthrough, with Samsung Electronics down 7.7% and SK Hynix down 8.8% at the Seoul close, and Japan’s Nikkei 225 fell 1.82% as SoftBank and Tokyo Electron followed the same trade lower (see today’s Kospi story).

Meta rose 3.38% against the tape. Meta’s Superintelligence Lab released Muse Wonder, its first frontier model, on Monday, priced at $4 per million input tokens through the Meta Model API (see today’s Meta story), and the shares were the clear large-cap technology gainer in a sector that otherwise fell 1.22%.

WTI crude fell 1.77% to $92.08 a barrel and Brent fell 1.67% to $104.87. Oil eased on the prospect of Russian diesel returning to export markets under the US-Russia arrangement debated in Washington, even as tanker freight rose another 1.17% and the Hormuz shipping campaign continued (see today’s Brent story).

The pattern is equity-specific rather than macro. Bond yields barely moved, with the US 10-year down 0.4 basis points to 5.24%, and the dollar index eased 0.22%. What sold was the crowded end of the AI and critical-minerals trade, chips on a Chinese memory claim and miners despite firmer metal prices, while crude drifted lower on supply politics. That mix reads as position trimming in the year’s winning baskets, not a rates shock, and it sets up Wednesday’s US CPI print as the next test of whether the trimming becomes a broader de-risking.

Sources

  1. Yahoo Finance market data · Yahoo Finance · 2026-10-13