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Long bond yields hit a 24-year high as Pimco calls a further rise feasible

Oil-driven inflation worries keep the bond market under pressure, with the Fed expected to tighten.

What happened

The US 30-year bond yield set a new 24-year high of 5.73% on Thursday before dropping to 5.65%. Brent rose by 5% to $105.3 a barrel that day, triggering a wave of selling in global bond and stock markets. Pimco's investment chief warned that a further sharp rise in borrowing costs is feasible as market participants are forced to unwind losing bets.

Sources: Cointelegraph, The Guardian, Financial Times. Details

Why it matters

Higher oil raises inflation expectations, and higher yields raise borrowing costs for households and companies. That chain is why Friday's oil pullback matters for bonds as well. If crude keeps easing, some of the pressure on long yields could ease with it.

What history shows

October has been a mixed month for the 10-year yield, with an average change of -1 bp across 64 years since 1962. November has been the softer month for yields, averaging -7 bp.

After 52 past Fed hikes, the 10-year yield averaged +2 bp over the next 20 trading days, and it was higher in 41% of cases.

Seasonal backdrop

The 10-year yield stood at 5.28% as of October 7, 2026, up +50 bp over one month and +110 bp this year. Seasonality for yields is modest and rarely overrides the macro news flow.

Scenarios

Possible paths and the signs that would point to each. No probabilities. Testable ones are graded on the scorecard.

Oil relief eases yields

Crude keeps falling on the Iran pledge, inflation fears fade and long yields retreat from their highs.

  • Brent staying below Thursday's high
  • Softer inflation expectations
  • Calmer Treasury auctions
US 10-year Treasury yield down in 30 days, open (-14 bp so far)

Unwind continues

Investors keep closing losing bond bets and yields climb further, as the Pimco warning describes.

  • Weak demand at Treasury auctions
  • Another oil spike
  • Hawkish comments from Fed officials
US 10-year Treasury yield up in 30 days, open (-14 bp so far)

Sideways grind

Yields hold near current levels while the market waits for the next Fed decision and Iran news.

  • Narrow daily yield ranges
  • Steady mortgage rates

What to watch

  • Treasury auction results
  • Fed speakers on further rate hikes
  • Brent crude direction after the Iran pledge
Sources and method (3)
  1. WTI crude reached $93.20 per barrel, its highest since Oct. 2, and Brent hit $105.88. The US 30-year bond yield set a new 24-year high of 5.73% before dropping to 5.65%. Cointelegraph, Oct 8
  2. Brent crude, the international benchmark, rose by 5% to $105.3 a barrel on Thursday, triggering a wave of selling in the global bond and stock markets. The Guardian, Oct 8
  3. Pimco's investment chief warns that a further sharp rise in US borrowing costs is feasible as market participants are forced to unwind losing bets. Financial Times, Oct 9

Historical figures are computed by our code from Yahoo Finance and FRED price history as of the close of October 8, 2026. The text was written by our editors. Editorial policy.

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Not investment advice. Market Seasonality publishes historical statistics, news summaries and scenario analysis for information and education. Past patterns do not guarantee future results. Nothing here is a recommendation to buy, sell or hold any asset, and scenarios describe possible paths without predicting them. See the disclaimer and methodology.