Asian shares advanced Thursday after the U.S. Treasury announced it would at least double its long-term debt buybacks [2].

The move is significant because it eases pressure on bond yields, which typically triggers a positive reaction in equity markets across the region.

South Korea's benchmark Kospi led the gains, jumping nearly six percent [1]. The surge in the Korean index mirrored a broader trend of growth across Asian markets following the news from Washington.

The U.S. Treasury Department said the government will at least double its planned buybacks of long-term debt [2]. This strategy is designed to manage the Treasury's portfolio and reduce the volatility of long-term interest rates.

Market analysts said the decision provided a necessary catalyst for investors who had been wary of rising yields. The expansion of the buyback program signals a more active approach by the U.S. government to stabilize the bond market, a move that often lowers borrowing costs for corporations.

The rally was particularly pronounced in Hong Kong and Seoul, where tech-heavy indices are more sensitive to shifts in U.S. monetary policy and Treasury yields. While most regional indices saw gains, the scale of the Kospi's rise stood out as the primary driver of the day's momentum [1].

Investors are now monitoring whether this policy shift will lead to a sustained decline in global bond yields or if it is a temporary measure to soothe market nerves. The Treasury's decision to increase the scale of its operations suggests a priority on liquidity and stability in the face of economic uncertainty.

“South Korea's benchmark Kospi led the gains, jumping nearly six percent.”

The U.S. Treasury's decision to increase debt buybacks acts as a liquidity injection into the bond market, reducing the supply of long-term securities and lowering yields. For Asian markets, which are highly sensitive to U.S. interest rate environments, this reduction in yield pressure makes equities more attractive relative to fixed-income assets, explaining the sharp rise in indices like the Kospi.