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[BUSINESS] · Japan, United States, Vietnam · 20 sources

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Nikkei 225 falls as US Treasury bond buyback plan boosts gold

Global financial markets experienced significant volatility on August 19, driven by shifts in US monetary policy and geopolitical instability. The Nikkei 225 index fell by approximately 2.54% to close at 67,460.73, largely due to a sell-off in semiconductor and AI-related stocks, alongside rising Japanese government bond yields.

In the United States, the Treasury Department announced an expansion of its long-term nominal Treasury buyback program, doubling the scale of operations for 10-to-30-year bonds to support liquidity. This intervention led to a decline in US Treasury yields and a significant drop in the US dollar index. Consequently, gold prices surged, breaking through the $4,500 per ounce threshold, with some reports placing it as high as $4,580.

Geopolitical tensions in the Middle East, specifically regarding the expiration of a US-Iran truce and disruptions in the Strait of Hormuz, contributed to rising crude oil prices. These factors, combined with inflation concerns, have created a complex environment for both equity and commodity markets.

Entities

Advantest · Amazia · CyberStep Holdings · Federal Reserve · Japan · Nikkei 225 · Nintendo · SoftBank Group · Strait of Hormuz · Tokyo Electron · Tokyo Stock Exchange · US Treasury

Claims

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Sources

Market Talk - August 19, 2026 [www.armstrongeconomics.com]