...Ahli Bank Q.P.S.C.'s (ABQ) Issuer Default Ratings (IDRs) reflect potential support from the Qatari authorities, as reflected in its Government Support Rating (GSR) of `a'. The Negative Outlook reflects that on the Qatari sovereign rating (AA/Negative). ABQ's `bbb-' Viability Rating (VR) reflects its adequate asset-quality metrics, satisfactory profitability, high capital ratios and reasonable liquidity. The VR also reflects the bank's large balance-sheet concentrations, a high reliance on wholesale funding and a small domestic franchise. Government Support Rating of `a': The Qatari authorities have a strong propensity to support domestic banks, irrespective of size or ownership. They have a strong ability to do so, as indicated by the sovereign rating and substantial net foreign assets and revenue, although this is weakened by the Qatari banking sector's large size relative to the domestic economy and high reliance on external funding. Pressures on Operating Environment Contained: Support...