Short-term borrowing costs dip modestly across all three tenors as market liquidity remains stable

Yields at Sri Lanka’s latest Treasury bill auction eased across all three tenors on offer, continuing a mild downward drift in short-term government borrowing costs.
The 91-day bill was accepted at 9.06%, down 16 basis points from the prior auction. The 182-day bill followed the same pattern, also easing 16 basis points to 9.06%. The 364-day bill saw a smaller decline of 2 basis points, settling at 9.89%. While none of the individual moves cleared the 20 basis point threshold typically associated with a standalone rate story, the consistent direction across all three tenors points to a broader softening in short-term rate expectations rather than a one-off move in a single maturity.
Demand at the auction was robust relative to the amounts offered, with the first phase of bidding for the 91-day, 182-day and 364-day bills together drawing bids well in excess of the LKR 120,000 million offered, before accepted amounts were finalized. A second phase of bidding saw additional bids submitted against a smaller allotment.
The move comes against a backdrop of relative stability elsewhere in the fixed income market. Secondary market yields on government bonds held broadly steady week-on-week, and banking system liquidity edged higher to LKR 348.76 billion from LKR 347.33 billion previously. Separately, foreign holdings of government securities continued to rise, up nearly 4% week-on-week — a trend that may be contributing to somewhat easier conditions at the short end of the curve.
Business Impact
For businesses and corporate treasurers reliant on short-term instruments or facilities benchmarked to T-bill rates, the modest decline offers a small measure of relief on near-term borrowing costs. The consistency of the move across tenors — rather than a single sharp drop — suggests the shift reflects broader market conditions rather than auction-specific dynamics, though the changes remain too small on their own to signal a decisive shift in the rate outlook.
What to Watch Next
Whether this modest easing extends into subsequent auctions, and whether it aligns with any change in the Central Bank’s policy stance, will be the key signals to watch in the weeks ahead.
Key Numbers
| Tenure | Latest Yield | Change vs. Prior Auction |
|---|---|---|
| 91-Day T-Bill | 9.06% | -16 bps |
| 182-Day T-Bill | 9.06% | -16 bps |
| 364-Day T-Bill | 9.89% | -2 bps |
| Banking System Liquidity | LKR 348.76 Bn | Up from LKR 347.33 Bn |
| Foreign Holdings of GSecs (WoW) | +3.98% | — |
Source Attribution
Source: Central Bank of Sri Lanka statistics and publicly available market information.

