After rising non-stop since July 4, the Qatar Exchange (QE) Index ended 0.80% lower at 6,959.34 points. Liquified Natural Gas (LNG) shipping company Nakilat ended flat at QR18.00, despite Standard & Poor's announcement from Monday that it has raised Nakilat's long-term corporate credit rating to "AA-" from "A" with a stable outlook. Industries Qatar posted the largest decline in a more than lacklustre trading session, weakening by 1.91% to QR97.70. Only 1.964m shares changed hands in Doha.