On a stock or a bond, “Not Rated” (NR) means no recognized rating agency or research analyst has issued an opinion on the security, or that a prior opinion has been pulled. So what does Not Rated mean for stocks and bonds in practice? On a stock, it usually reflects timing: a quiet period, an analyst transition, or coverage that simply hasn’t started. On a bond, it carries weight. Unrated bonds typically pay roughly 47 to 49 basis points more in yield than comparable rated ones, and many large institutional buyers are barred from holding them at all.1FDIC. Do Municipalities Pay More to Issue Unrated Bonds The label itself tells you very little. The reason behind it tells you almost everything.
What NR Means on a Stock
When a brokerage firm or independent research house tags a stock NR, the usual explanation is that the analyst hasn’t finished the work, not that something is wrong with the company. Two situations account for most of it.
Quiet Periods Around Offerings
FINRA Rule 2241 bars a firm that underwrote an initial public offering from publishing research or putting its analysts in front of the public for at least 10 days after the IPO. For secondary offerings where the firm served as manager or co-manager, the blackout runs at least three days. The stock sits as NR on that firm’s platform during the window. An exception applies for Emerging Growth Companies, where the quiet-period restriction does not apply.2FINRA. FINRA Rule 2241 – Research Analysts and Research Reports
Analyst Changes and Corporate Events
When a lead analyst leaves a firm, the replacement usually needs several weeks to review each company before putting a name on a recommendation. Every stock in the departing analyst’s coverage universe shifts to NR in the meantime. Pending mergers, spin-offs, and other major corporate actions can also render an older rating meaningless, and firms typically suspend coverage until new filings land rather than leave a stale call in place.
If you see NR on a stock, check whether other firms cover it. A company rated “Buy” at three shops and NR at a fourth simply hasn’t been picked up by the fourth. That’s a very different thing from a stock that no one will touch.
What NR Means on a Bond
Credit ratings on bonds come from Nationally Recognized Statistical Rating Organizations, 11 of which are currently registered with the SEC, including S&P, Moody’s, Fitch, A.M. Best, DBRS, Egan-Jones, and Kroll.3Securities and Exchange Commission. Current NRSROs A bond is “rated” for regulatory purposes if even one of them has graded it. NR means none of them have.
Cost: The Issuer Didn’t Pay for a Rating
Rating agencies run on an issuer-pays model: the company or municipality seeking the grade covers the fee. For a small municipal bond sold mostly to local banks or a handful of investors who will do their own analysis, the fee can easily exceed the interest savings a rating would produce. Plenty of small towns and special districts with stable tax bases issue unrated debt for that reason alone.
Private Placements to Sophisticated Buyers
A large share of unrated corporate bonds trades under Rule 144A, which lets issuers sell debt directly to Qualified Institutional Buyers (QIBs). The SEC defines QIBs as institutions owning and investing large amounts of securities, with thresholds ranging from $10 million to $100 million depending on the type of entity.4Securities and Exchange Commission. Defining the Term Qualified Purchaser Under the Securities Act of 1933 Those buyers can evaluate credit on their own, so the rating is optional. The trade-off is liquidity, since 144A bonds can only be resold to other QIBs.
The Agency Didn’t Have Enough Information
Under the Credit Rating Agency Reform Act of 2006, NRSROs must maintain written policies to prevent misuse of nonpublic information and manage conflicts of interest.5Securities and Exchange Commission. Public Law 109-291 Credit Rating Agency Reform Act of 2006 When an issuer can’t or won’t supply audited financials or other data the agency needs, the agency will decline to rate or pull an existing rating rather than publish a grade it can’t defend. Bankruptcy proceedings, major mergers, and sudden changes to a company’s debt structure all create those information gaps.
Never Rated vs. Rating Withdrawn
NR covers two very different situations: the security was never rated in the first place, or a rating that once existed has been pulled. S&P notes that ratings “may be changed, suspended, or withdrawn at any time,” with triggers that include mandatory conversion of a security into equity, a permanent write-down to zero, or insufficient information to maintain the opinion.6S&P Global Ratings. S&P Global Ratings Definitions
The distinction matters. A bond that was never rated often just reflects an issuer who chose not to pay. A rating that was withdrawn usually points to a specific event. If a bond carried an A grade last year and shows NR today, the reason for the withdrawal is the story worth chasing.
What the Market Charges for Unrated Bonds
An FDIC study of municipal bonds issued between 1998 and 2017 found that going without a rating pushed offering yields up by about 47 basis points on revenue bonds and 49 basis points on general obligation bonds.1FDIC. Do Municipalities Pay More to Issue Unrated Bonds On a $100,000 position, roughly half a percentage point of extra yield works out to about $500 a year. That’s what the market pays holders for the missing third-party opinion and the thinner resale market.
The premium is not purely a liquidity discount. Moody’s research on municipal defaults from 1970 through 2000 found that investment-grade issuers defaulted at an average annual rate of just 0.0005%. External data from a similar period identified more than 1,300 defaults among unrated municipal bonds, compared to only 18 among Moody’s-rated issuers.7Moody’s Investors Service. Moody’s US Municipal Bond Rating Scale Moody’s noted a self-selection bias: riskier issuers are more likely to skip the rating process, which concentrates weaker credits in the unrated pool. Unrated does not mean doomed, but the unrated universe does tilt riskier because stronger issuers have more reason to pay for a rating that lowers their borrowing cost.
Why Many Big Buyers Can’t Touch Unrated Debt
Part of what sustains the yield premium is that major institutions are often forbidden from holding unrated bonds. State insurance regulators follow the NAIC’s risk-based capital framework, and unrated securities that haven’t been filed with the NAIC’s Securities Valuation Office are generally pushed into the worst designation, which carries a 30% pre-tax capital charge against the position.8NAIC. Purposes and Procedures Manual of the NAIC Investment Analysis Office That makes unrated bonds prohibitively expensive for insurers to hold in size.
Many pension funds are capped by statute or policy to securities rated in the top four categories by a recognized agency. Mutual funds that promise investment-grade holdings in their prospectus can’t buy unrated paper regardless of its actual quality. A smaller buyer pool means issuers have to offer more yield to clear the market.
How to Judge an NR Security Yourself
For a stock, NR is informational. Look at who else covers the name, and treat the label as a timing signal rather than a verdict.
For a bond, you are being asked to lend money without a third-party opinion on whether you’ll be repaid. That’s not reckless by itself; plenty of unrated municipal bonds have performed well for decades. It does mean you’re taking on the credit work a rating agency would otherwise do. At minimum, review the issuer’s audited financial statements, debt service coverage ratios, and revenue trends. If those documents aren’t publicly available, that absence is itself an answer.
The single most useful question to settle before you invest is which kind of NR you’re looking at: an issuer who chose not to pay for a rating, or an issuer who couldn’t get one. The yield premium is the same either way. The risk is not.