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On Friday, Moody’s pulled the set off and stripped the US’s of its final high ranking — downgrading it one notch from Aaa to Aa1.
However does it matter?
We seemed into the implications of a downgrade a few months in the past, again when Moody’s nonetheless appeared decided to disregard the sixty-foot flashing neon signage writing on the wall.
From a inventory market perspective, who is aware of? Now we have no clue whether or not, or how a lot, it’ll matter when buying and selling opens on Monday. Certain, S&P’s US sovereign downgrade in August 2011 prompted the worst single day fall in US inventory costs for the reason that (admittedly then latest) world monetary disaster. However the market shortly recovered. This may occasionally have been folks freaked out about what the downgrade would possibly imply to the monetary plumbing.
So, does the downgrade matter to monetary plumbers this time? From a mechanical perspective, the reply is nearly definitely “in no way”.
Banks’ risk-weighted capital asset calculations look unlikely to be impacted by the ranking change. It’s because regulators don’t are inclined to differentiate between Aaa and Aa1 when setting capital risk-weights. For instance, that is how the BIS units out its standardised strategy for credit score threat because it applies to particular person claims to calculate their risk-weighted property in relation to sovereigns:

Moody’s might’ve finished a three-notch downgrade — from Aaa all the best way to Aa3 — and nothing would’ve modified on this entrance.
How about collateral administration? A be aware from Barclays on Friday night time seemed on the implications:
For collateral functions, a downgrade to Aa1 can also be unlikely to have an impact. For example, DTCC and CME check with the asset class as US Treasuries and the haircut is a perform of the maturity and safety kind (TIPS/FRNs) however not the scores. At LCH, a downgrade to Aa1 is unlikely to result in a change. For example, USTs and Gilts have related haircuts, even because the latter are rated decrease.
Moreover, they reckon that the transfer received’t set off strikes on the quick finish of the curve as a result of:
Laws for the reason that monetary disaster has diminished using express scores pointers in funding mandates.
So, they don’t count on waves of asset gross sales from the circa $4.5tn in Treasury and Treasury repo in cash funds.
Transferring away from monetary markets, the downgrade could nicely matter to Moody’s themselves. If S&P International Rankings’ expertise in 2011 is something to go by, the agency shall be in for a tough trip. Following S&P’s downgrade greater than a decade in the past, US Treasury Secretary Tim Geithner threw a little bit of a public wobbly, and filmmaker Michael Moore referred to as on Obama to arrest the agency’s CEO. As we wrote in March:
Somebody employed a airplane to fly previous their ranking company’s places of work dragging a banner proclaiming that they need to all be fired, and a bunch of native governments terminated their enterprise with the agency.
In the meantime, and apparently unrelatedly, the Justice Division launched an investigation into S&P. Inside just a few weeks, CEO Deven Sharma had left the corporate. When issues moved from being simply an investigation to an precise $5bn federal lawsuit for allegedly deceptive banks concerning the credibility of its scores earlier than the 2008 monetary disaster, S&P referred to as this direct retaliation for its downgrade.
Following the downgrade, Moritz Kraemer — previously International Chief Score Officer of Sovereign Rankings at S&P International Rankings — wrote on LinkedIn that the hazard of retribution was actual:
Within the US, the ranking companies are regulated and licensed by the SEC (Securities and Alternate Fee). As issues stand in America in the present day, we should surprise, whether or not the SEC can act independently from the needs of the White Home. Keep in mind that the earlier SEC chairman, Gary Gensler, resigned on inauguration day, making method for a Trump acolyte. Will Trump be so enraged by the downgrade of the US (which he certainly will take private) that he’ll demand his pound of flesh and impose revenge on Moody’s.
We’ve already seen the White Home dismiss the evaluation, and lash out at Mark Zandi, Moody’s chief economist. Steven Cheung, assistant to the President, tweeted: “No one takes his ‘evaluation’ significantly. He has been confirmed fallacious time and time once more.”
As reported in MainFT, Zandi was not an writer of this report and works for Moody’s Analytics, a separate a part of the corporate that’s not a part of its scores enterprise.
Extra typically, whereas a one-notch downgrade from Aaa could not have big market implications it’s nonetheless vital.
Fiscally, Moody’s has lengthy projected near-basket-case metrics for the US. In reaffirming the Aaa ranking again in March it wrote that the nation’s Aaa ranking leaned as an alternative on the nation’s “extraordinary financial power and the distinctive and central roles of the greenback and Treasury bond market in world finance”.
And in its earlier ranking report reaffirming the Aaa ranking again in November 2023, Moody’s wrote:
A weakening of establishments and governance power, comparable to by deterioration in financial and macroeconomic coverage effectiveness or the standard of legislative and judicial establishments, might additionally pressure the ranking.
The world has moved on since 2023, and Moody’s is marking-to-market.