Who buys government debt — the same debt carries different risk depending on who holds it
Two countries can share the same debt ratio and yet face very different dangers, because the danger depends on who holds the bonds. Through the holder structures of Japan, the United States, Korea and China, this piece traces the questions of rollover risk and monetary sovereignty.
GLOBAL · 6 min · Updated 2026-07-17
What we mean by the holders of government debt
A country's government debt is not paper stacked in a vault; it is a bond that someone holds as an asset. That someone is usually split among domestic banks, pension funds and insurers, foreign investors, and the central bank. If the debt statistic tells you how much a state owes, the holder structure tells you to whom it owes it. Two stocks of debt of the same size can behave completely differently in a crisis when this composition differs.
The reason to break holders apart is that each has different motives. Domestic pension funds and insurers need stable local-currency assets to match their long-dated liabilities, so they tend to hold government bonds for the long haul. Foreign investors, by contrast, can leave whenever the exchange rate, the interest-rate spread or conditions at home turn against them. When a central bank holds a large share, the arrangement effectively props up the government’s borrowing with the issuance of its own currency. Holder composition is therefore not a mere line in a table but a core variable of fiscal stability.
The exact percentages are compiled differently across institutions and dates, and they shift constantly. Rather than nail down a single number, this article focuses on the broad picture: is a country’s holder base broadly domestic, or dependent on foreign money? For precise figures it is more honest to check the official releases of Japan’s Ministry of Finance, the US Treasury’s TIC data, Korea’s Ministry of Economy and Finance, and the People’s Bank of China as they are updated.
Japan — why debt held by its own citizens and its central bank looks less precarious
Japan is known for one of the highest government-debt-to-GDP ratios in the developed world, and yet its bond market has kept low yields and low volatility for a long time. The reason often cited is the holder structure. Japanese government bonds have traditionally been held overwhelmingly at home — by domestic banks, insurers, pension funds and the Bank of Japan — giving them the character of what is called 内国債, debt owed largely within the nation itself. The creditor, in other words, mostly lives inside the country.
On top of this, years of quantitative easing led the Bank of Japan to buy government bonds in bulk, so that by recent releases from the Ministry of Finance and the Bank of Japan the central bank holds a very large share of the outstanding stock — a portion generally reported as somewhere around half. When the central bank is the largest holder, much of the interest the government pays flows back into the treasury, and the scope for a sudden fire-sale in the market narrows. That is why, on the surface, the picture looks remarkably stable.
But this stability is not free. A structure in which the central bank keeps absorbing government bonds constrains the freedom of monetary policy and makes an exit strategy harder whenever inflation or the exchange rate wobbles. The holder structure has not abolished risk so much as moved its shape — from market risk toward policy and monetary risk.
The United States — foreign holdings, the Fed, and the "who is selling Treasuries" debate
The United States is the opposite case. Because Treasuries are issued in the dollar, the world's reserve currency, and are regarded as the deepest and most liquid safe asset on earth, the roster of holders includes a broad range of foreign governments and institutions. The US Treasury's TIC (Treasury International Capital) data show that Japan, China and many other countries hold Treasuries in large amounts. On top of that, the Federal Reserve holds a substantial share as an instrument of monetary policy.
The fact that foreign holdings are large often turns into the question of "what happens if the creditors sell all at once." Whenever a particular country's holdings are seen to shrink, the headline "is it selling Treasuries" duly appears. But as long as the dollar is the reserve currency, the United States can repay debt in its own currency, and a large sell-off boomerangs onto the seller's own foreign reserves and exchange rate, so real-world adjustments tend to be gradual.
The key point is that America's risk has a different texture from Japan's. Where Japan is exposed to monetary and policy risk, the United States is more sensitive to external variables — foreign demand and confidence in the dollar. Even under the same label of 'high debt,' the holder structure changes the very nature of the risk.
Korea's foreign share of treasury bonds, and China's shadow creditors
Korean treasury bonds sit in an intermediate position: neither as domestically held as Japan's nor as foreign-dependent as America's. The foreign-ownership share reported by the Ministry of Economy and Finance and the Bank of Korea rises and falls over time, but what matters here is not the precise percentage so much as the direction. When foreign holdings rise, funding costs fall — a genuine advantage — but the country's sensitivity to capital outflows grows, so that when money flees during a global risk-off phase the exchange rate and interest rates wobble together.
China is the case where the surface and the substance of the statistics diverge most sharply. Look only at the central government's official bond stock and the burden seems modest; but the debt taken on by local-government financing vehicles (LGFVs) to fund infrastructure piles up like a shadow of de facto government-related liabilities. In this 'shadow creditor' structure, the part that escapes the official numbers is scattered among local governments, banks and individual investors, which makes even mapping the holder structure difficult. The official figures from the People's Bank of China or the fiscal authorities cannot fully capture this shade.
If Korea's lesson is that "who holds the bonds governs funding stability," China's lesson is that "debt whose holders you cannot even identify is the hardest to manage." In both cases it is the hands the debt rests in, rather than its sheer total, that decide the risk.
Why holder structure matters as much as the debt ratio
The first reason holder structure matters is rollover risk. When a bond matures it is usually repaid by issuing a new one, which requires someone willing to buy again. If steady domestic long-term investors take up the paper, the rollover passes quietly; but if the holder base is skewed toward fickle foreign money, maturities can jam and yields can spike in a crisis. Two countries with the same debt ratio can meet very different fates at exactly this point.
The second reason is monetary sovereignty. If a state borrows in its own currency and that debt is held largely by its own citizens and central bank, it has room, in the worst case, to buy time through monetary policy. Borrow in foreign currency, or lean heavily on foreign creditors, and printing your own currency solves nothing while the public finances are held hostage to outside confidence. A great many emerging-market crises have sprung from this currency-and-holder structure rather than from the debt ratio itself.
So when you compare debt across countries, do not stop at the single-line debt-to-GDP ratio; ask about the holder composition behind it as well. That is also why this site publishes the source and the reference date alongside the debt total. A single number cannot tell the whole story of risk, and the question "who holds this debt" is what gives that number its context.
Sources and verification
Sources: government-bond holder statistics from Japan's Ministry of Finance and the Bank of Japan, the US Treasury's TIC (Treasury International Capital) data, treasury-bond statistics from Korea's Ministry of Economy and Finance and the Bank of Korea, and official releases from the People's Bank of China and on local-government debt. Ownership shares are provisional and approximate figures that vary by release date, so the text gives priority to qualitative description.