Steepening of the Treasury Yield Curve: How Refinance Announcements Can Move the Bond Market on Wednesday

The U.S. bond market experienced a clear steepening of the yield curve this Wednesday. As the U.S. Treasury’s quarterly refinancing announcement was released as scheduled, the performance of short- and long-term bonds diverged, causing the overall yield curve to become steeper. This shift is driven both by the content of the announcement itself and by market interpretations of the future pace of U.S. debt supply.

Yield Curve Steepening as Short and Long Ends Diverge

On Wednesday, U.S. Treasury trading showed a divergence. Around 3 p.m. New York time, short-term yields fell by less than 1 basis point, while long-term yields rose by about 2 basis points. This asymmetrical movement directly contributed to the steepening of the yield curve. Specifically, the spreads between 2s10s and 5s30s widened by approximately 2 basis points intraday, further confirming the divergence between short and long ends.

The 10-year U.S. Treasury yield remained relatively flat, but compared to Germany’s bonds, which outperformed U.S. Treasuries by 4 basis points, and the UK, which underperformed by 2 basis points, it indicates that U.S. bonds are lagging in the European bond market.

Refinancing Plan Meets Expectations, USD Swap Spreads Move in Reverse

Following the refinancing announcement, U.S. Treasury yields shifted notably—yield curves began to distort and steepen. Interestingly, USD swap spreads narrowed in the opposite direction, a logical point worth examining. Since the announcement did not signal a shortening of the weighted average maturity, market positions betting on widening spreads were gradually unwound, leading to the subsequent narrowing of swap spreads.

Active Corporate Bond Issuance and Hedging Funds Push Down Spreads

Recently, financial firms have issued a large volume of bonds, with related swap hedging flows entering the market, becoming a key driver of the spread narrowing this week. This liquidity pressure, combined with moderate macroeconomic data, has made the market more cautious about bonds.

Steady Economic Data, Rate Cut Expectations Unchanged

Service PMI and the ISM Services Index remain solid, but the U.S. bond market’s reaction to these data has been limited. The market continues to expect about 50 basis points of rate cuts by the end of the year, unchanged by recent data. This suggests that the main driver of the yield curve steepening is supply-side factors rather than fundamentals.

Recent Yield Data Summary

As of 3:44 p.m. Eastern Time, U.S. Treasury yields across different maturities show divergence:

• 2-year yield down 1.02 basis points at 3.5594%
• 5-year yield up 0.18 basis points at 3.8332%
• 10-year yield up 1.0 basis points at 4.2755%
• 30-year yield up 1.97 basis points at 4.9139%

In terms of spreads, the 2s10s spread widened by 2.03 basis points to 71.41 basis points, and the 5s30s spread widened by 1.97 basis points to 107.888 basis points. These figures reaffirm the trend of yield curve steepening, with long-term yields rising more significantly than short-term yields.