Moody's lowered Mississippi's ratings outlook to negative although the actual credit rating remained at Aa2. Moody's stated on its website:
New York, August 11, 2016 -- Summary Rating Rationale
So the credit rating stays the same but Moody's says be careful about buying Mississippi. Nice.
Moody's Investors Service has affirmed the State of Mississippi's Aa2 general obligation bond and Aa3 lease-appropriation ratings. The rating reflects the state's historical conservative finances and average governance offset by above-average debt levels and low per-capita income. Moody's has revised the outlooks on both the general obligation and lease-appropriation ratings to negative. ...
The negative rating outlook reflects ongoing revenue weakness and below-average economic growth. The state resorted to use of reserves to address revenue underperformance in fiscal 2016. Revenues continued to underperform in July, the first month of fiscal 2017, which, alongside the suspension of the 98% limit on appropriations may lead to a worsening in the state's fiscal position. We believe the state's economy will continue to grow at a pace slower than the rest of the nation, leading to ongoing fiscal stress. The state will likely address these issues with further budgetary discipline, but also through use of one-time revenues, like the rainy day fund, which could leave it with less financial cushion than peer states.