FX.co ★ Spanish 12-Month Letras Yield Climbs to 2.999%, Extending Upward Trend

The yield on Spain’s 12-month Letras del Tesoro rose to 2.999%, up from the previous level of 2.832%, according to data updated on 06 October 2026. The move marks a continued upward shift in short-term Spanish government borrowing costs.

The increase in the 12-month auction yield indicates that Spain is now paying a higher rate to investors for its short-term debt than at the previous auction. While the move from 2.832% to 2.999% is incremental, it underscores a firming interest-rate environment in the country’s short end of the curve.

This development will be closely watched by market participants as an indicator of funding conditions for Spain’s Treasury and as a gauge of investor appetite for short-term euro-area sovereign paper. The latest auction result suggests that investors continue to demand slightly higher compensation to hold Spanish government debt over a 12-month horizon.