Current Bissau-Guinean government securities results from the regional UMOA-Titres auction market, covering BAT Treasury bills and OAT Treasury bonds.
Latest weighted auction yields by instrument and maturity. Coupon rates and prices are not substituted for market yields.
Dated primary-market results from UMOA-Titres auction results. Amounts are shown in millions of XOF.
| Auction date | Instrument | Tenor | Yield | Offered | Allotted |
|---|---|---|---|---|---|
| Aug 11, 2026 | T-Bill | 12-month | 5.6300% | 15,000m XOF | 6,909m XOF |
| Aug 11, 2026 | bond | 36-month | 7.3000% | 15,000m XOF | 8,091m XOF |
| Jul 14, 2026 | T-Bill | 12-month | 5.7000% | 12,500m XOF | 7,500m XOF |
| Jul 14, 2026 | bond | 36-month | 7.6800% | 12,500m XOF | 5,000m XOF |
| Jul 6, 2026 | T-Bill | 12-month | 5.9400% | 12,500m XOF | 5,000m XOF |
| Jul 6, 2026 | bond | 36-month | 7.9700% | 12,500m XOF | 7,500m XOF |
| Jun 29, 2026 | T-Bill | 12-month | 6.0400% | 15,000m XOF | 5,185m XOF |
| Jun 29, 2026 | bond | 36-month | 8.0700% | 15,000m XOF | 9,815m XOF |
Source: UMOA-Titres auction results.
Government securities are issued through UMOA-Titres in the shared West African Economic and Monetary Union market. Auctions settle in West African CFA francs (XOF) through the regional central-bank and primary-dealer network.
BAT are short-term Treasury bills issued at a discount. OAT are medium- and long-term Treasury bonds, usually paying a stated annual coupon. Mansa reports the weighted average yield from completed auctions rather than treating the coupon as the market yield.
Local terminology: BAT · OAT · rendement moyen pondéré · West African CFA franc.
Guinea-Bissau government-security observations as of Aug 11, 2026 are: 12-month 5.6300%, 36-month 7.3000%. These are dated primary-market yields from UMOA-Titres, not indicative rates entered manually by Mansa Markets.
UMOA-Titres publishes or administers the official government-securities results used on this page. Instruments are denominated in XOF, and Mansa Markets retains the official auction date with every validated observation.
Guinea-Bissau market terminology includes BAT · OAT · rendement moyen pondéré · West African CFA franc. Treasury bills are short-term government instruments, while government bonds have longer maturities. Coupon rates, prices and weighted auction yields are different measures and are not substituted for one another on this page.
Mansa Markets checks UMOA-Titres auction results on its official publication schedule and updates this page after a new release passes validation. The “Last rate update” date reflects the underlying auction observation rather than a website deployment or page request.
