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深度分析By Mr.Xuan · 2026-08-18

G10 Long Bonds Collapse: 30-Year Treasury Yield at 19-Year High, Where Will Money Flow?

G10 Long Bonds Collapse: 30-Year Treasury Yield at 19-Year High, Where Will Money Flow?

Global bond markets have collapsed.

Not one country, not one type of bond—G10 (world's ten largest economies) long-term government bonds are all crashing. 30-year US Treasury yield hit 2007 highs, Japan 5-year JGB yield at record, Eurozone yields at multi-year highs.

Cailianshe's headline is more direct: "G10 long bonds all collapsed."

Meanwhile, US-Iran ceasefire expired, tensions escalating. Trump says "not seeking to extend memorandum with Iran," demands Iran "surrender." US stock futures fell, Nasdaq 100 futures down over 1%.

Bonds crashing, stocks falling, geopolitical tensions rising—where is money flowing?

First, Understand: Rising Bond Yields = Falling Bond Prices

This is key to understanding this crisis.

Bonds have a counterintuitive property: when yields rise, bond prices fall. Because coupon rates are fixed, when markets demand higher yields, old bond prices must drop to match new yield levels.

So "30-year Treasury yield at 19-year high" translates to: 30-year US Treasury bond prices fell to 19-year lows.

Global investors are selling long-term government bonds. Not small-scale selling—systemic selling.

Why the Collapse? Three Reasons

Reason 1: Inflation Expectations Resurging

US-Iran tensions escalate → oil prices rise → inflation pressure increases → central banks may need to maintain high rates or even hike → long-term bond fixed income becomes less attractive.

Simple chain: geopolitical conflict pushes energy prices, energy pushes inflation, inflation forces central bank tightening, tightening hits bond prices.

Reason 2: Fiscal Deficit Out of Control

US fiscal deficit surged 48%. Government borrowing more, issuing more bonds. Supply exceeds demand → bond prices fall → yields rise.

Deeper concern: if the world's largest economy's fiscal discipline continues deteriorating, investors will demand higher "risk premium" to hold US Treasuries—meaning yields rise further.

Reason 3: Global Carry Trade Reversal

Bank of Japan rate hike expectations rising (Japanese PM supports central bank hiking soon). Yen carry trade (borrow yen, buy high-yield assets) is one of the world's largest leveraged trades.

If Japan hikes → yen strengthens → carry trade unwinds → global asset prices under pressure → bonds sold off.

August 2024's BOJ hike-triggered global flash crash is still fresh. If it happens again, impact could be bigger.

What Does "Bond-Stock Double Kill" Mean?

Traditional investment textbooks tell us: bonds and stocks are negatively correlated. Good economy = buy stocks, bad economy = buy bonds. Bonds are the "safe haven."

But now: bonds and stocks falling together.

This means traditional asset allocation strategies are failing. The 60/40 portfolio (60% stocks + 40% bonds)—used by global pension funds and institutions for half a century—is facing unprecedented stress.

Asset ClassRecent PerformanceTraditional RoleStatus
Long-term BondsCrashing (yields at highs)Safe havenSafe haven leaking
StocksFutures down 1%+Growth engineEngine stalling
US Dollar3-month lowSafe haven currencyAlso falling
GoldNearing $4,450Ultimate safe havenRare winner

When all traditional assets fall, money seeks new destinations.

Where Will Money Flow?

Historical experience tells us, in "bond-stock double kill" extreme environments, money typically flows to:

  1. Gold — Gold approaching $4,450, Bank of Korea bought gold for first time in 13 years. Gold is the ultimate safe haven asset for thousands of years, especially favored when fiat currency trust wavers.
  2. Cash/Short-term Bills — Long bonds falling, but short-term bills (3-month, 6-month) yields still high (5%+). Money may exit long bonds, park in short-term bills "waiting for storm to pass."
  3. Crypto assets (controversial) — BTC called "digital gold" by some, but in actual crises, BTC behaves more like risk asset than safe haven. In 2022 bond-stock double kill, BTC fell 78%.
  4. Commodities — Oil strengthening, agricultural prices volatile, commodities typically perform well in inflationary environments.

Key question: are crypto assets "safe haven" or "risk assets" in this crisis?

Answer depends on crisis nature. If it's a "liquidity crisis" (everyone wants cash), crypto falls with stocks. If it's a "fiat trust crisis" (people don't trust governments/central banks), crypto may benefit.

Lessons for Retail Investors

  1. Don't worship the "60/40 portfolio" — Bond-stock double kill proves traditional allocation isn't foolproof. In extreme environments, all assets can fall together.
  2. Cash is king (short-term) — In high uncertainty, holding cash or short-term bills isn't "missing opportunity," it's "protecting principal."
  3. Beware high leverage — Bond market volatility transmits to all markets. High leverage is dangerous in any asset class.
  4. Diversification ≠ safety — If your "diversification" is just buying different countries' bonds and stocks, in systemic risk they may all fall together. True diversification needs uncorrelated assets (gold, commodities, crypto, etc.).

FunDAO's Positioning in Volatile Markets

Global bond-stock double kill, geopolitical escalation, inflation expectations rising—in this environment, most asset prices are violently volatile.

FunDAO's deflation mechanism doesn't depend on any external factors:

DimensionTraditional AssetsFunDAO
Price DriverMacro + geopolitics + central bank policyDeflation mechanism + supply/demand
VolatilityExtremely high (bond-stock double kill)Daily 2.5% burn, high certainty
Safe Haven AttributeGold/short-term billsDoesn't rely on safe haven narrative
Investor Judgment NeededMacro direction, asset rotationNone needed, mechanism runs automatically

FunDAO isn't providing "safe haven" in bond-stock double kill—it provides a different approach: don't bet on macro direction, don't play asset rotation games, let the mechanism run automatically.

When all traditional assets are searching for direction, "not needing direction" itself may be an advantage.

Final Words

G10 long bonds all collapsing isn't one country's problem—it's a global signal.

Fiscal deficits out of control, geopolitical escalation, central banks in dilemma—these structural problems won't resolve in days or weeks. Market volatility may persist for a long time.

In this environment, most important isn't "what to buy" but "what NOT to buy"—don't buy high leverage, don't buy single assets, don't buy what you don't understand.

FunDAO isn't a safe haven asset, isn't digital gold, isn't a crisis harbor. It's simply a token system with transparent rules and automatic mechanisms.

In an era when all assets are violently volatile, this "certainty" itself is worth thinking about.

Disclaimer: This article is for information and education purposes only, not investment advice. Cryptocurrency investment carries high risk, please research and decide carefully.