---
title: "What happened overnight – Tuesday 15th September 2026"
publisher: "Share Talk"
author: "sharetalk"
published: "2026-09-15T07:22:06+00:00"
modified: "2026-09-15T07:22:06+00:00"
date: 2026-09-15
canonical: "https://www.share-talk.com/what-happened-overnight-tuesday-15th-september-2026/"
category: "Blogs"
categories: ["Blogs", "Technology", "Technology, Media & Telecoms"]
tags: ["Asia", "Bangkok", "Denmark", "Endeavour Mining", "Fed", "Federal Reserve", "Finland", "FRANCE", "FTSE 100", "GERMANY", "Glencore", "Greenland plan", "Hong kong", "Japan", "London", "Manila", "mining stocks", "Mumbai", "Nasdaq Composite", "NATO alliance", "Netherlands", "Nikkei 225", "Norway", "S&P 500", "shanghai", "Singapore", "Sweden", "Sydney", "Taiwan", "UK", "United States", "Wall Street", "Wellington"]
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format: "news"
language: "en-GB"
---

# What happened overnight – Tuesday 15th September 2026

**Published:** September 15, 2026
**Author:** sharetalk
**Categories:** Blogs, Technology, Technology, Media & Telecoms
**Tags:** Asia, Bangkok, Denmark, Endeavour Mining, Fed, Federal Reserve, Finland, FRANCE, FTSE 100, GERMANY, Glencore, Greenland plan, Hong kong, Japan, London, Manila, mining stocks, Mumbai, Nasdaq Composite, NATO alliance, Netherlands, Nikkei 225, Norway, S&P 500, shanghai, Singapore, Sweden, Sydney, Taiwan, UK, United States, Wall Street, Wellington
**Featured image:** ![](https://i0.wp.com/www.share-talk.com/wp-content/uploads/2026/08/182abb14-cee9-4e0b-8857-38a6f5cea2af.png?fit=1726%2C911&quality=80&ssl=1)

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**US Treasury Yield Hits 19-Year High as Oil Prices Keep Markets on Edge**

The cost of US government borrowing climbed to a fresh 19-year high on Tuesday as rising oil prices and renewed Middle East tensions intensified inflation concerns.

The **10-year US Treasury yield briefly hit 5.02%**, its highest level since 2007, while Japan’s benchmark 10-year government bond yield moved back above **3%**, reaching a 30-year high.

Oil remained the main macroeconomic concern after fresh attacks involving Yemen’s Houthis and threats to Saudi Arabia’s east-west pipeline raised fears of disruption to global supply. **Brent crude traded around $107 a barrel**, while US crude was above $102.

Higher energy prices are adding to pressure on central banks, including the **Federal Reserve and Bank of England**, as markets reassess the likelihood of further interest-rate increases.

Wall Street closed lower overnight, with the **S&P 500 down 0.5%, the Nasdaq Composite falling 0.6% and the Dow Jones losing 0.3%**. Nvidia dropped around 3.4% amid continued weakness in AI-related stocks.

Asian markets were mixed on Tuesday. Japan’s Nikkei was broadly steady to higher, helped by a strong rebound in SoftBank, while **Australia’s ASX 200 fell around 0.9%** and Hong Kong’s Hang Seng traded lower.

With oil prices elevated and government bond yields pushing to multi-year highs, investors remain cautious ahead of this week’s key central-bank decisions.

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