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Credit quality of AAA or AA.

Investment Grade

Describing a bond with a medium or high rating. Bonds rated Baa3 by Moody's or BBB- by S&P or Fitch. Investment-grade bonds are considered sufficiently low-risk that the law allows banks to invest in them. In addition to being low-risk, investment-grade bonds are low-return, greatly reducing the cost on the issuer. Most American Treasury and municipal bonds are investment-grade. See also: Junk, High-Rating.


Of, relating to, or being a bond with little risk of default on the part of the issuer. High-grade is usually reserved for bonds rated AAA or AA by the rating services. Compare investment-grade.
References in periodicals archive ?
When I explain the procedure to patients with high-grade dysplasia, they are horrified.
We are getting better at detecting high-grade dysplasias.
The 400 X magnification in vivo real-time images allow us to identify--with 100% sensitivity--areas of Barrett's esophagus and with 73% specificity, areas of high-grade dysplasia.
According to the two-year results, published in the GIE journal, 77 percent of patients who received Photofrin PDT had complete removal of high-grade dysplasia, while only 39 percent of those who received acid relief medication had no signs of the condition.
It boils down to this: by treating high-grade dysplasia, we are reducing the development of esophageal cancer.
Mineralization occurs as high-grade disseminated to massive sulfide replacements along a regional dolomitic limestone-quartzite contact.
Shallow exploration holes drilled by the Anaconda Mining Company in the early 1980's intersected significant high-grade silver and base metal values in a 400 x 400 meter area at Khotol.
The program targets significant high-grade silver and associated base metal mineralization developed in dolomitic limestone approximately 5 kilometers northeast of the recently reclaimed Illinois Creek open-pit gold mine.
These results are very encouraging as the Roberto mineralized system remains totally open at depth with persistent high-grade intersections.
These veins, developed in the periphery of the two main zones yielded many new high-grade intersections including 28.

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