The long end stops standing still

On Wednesday the two-year Treasury closed at 4.85 per cent, the five-year at 4.99, the ten-year at 5.11, the twenty-year at 5.45 and the thirty-year at 5.40, on the Treasury's daily par yield curve. The ten-year's fifteen-basis-point rise was the largest single-day move of 2026; the thirty-year's eleven was the equal second largest.

That second figure requires this desk to revise something it published a few hours earlier. Yesterday morning we argued, on data through 22 September, that the entire September repricing had happened inside five years: the two-year up 32 basis points on the month, the ten-year up 17, the thirty-year up 2. The sell-off, we concluded, was about the Federal Reserve and not the price of duration. By the close of that same day the thirty-year was up 13 basis points on the month, the twenty-year 18 and the ten-year 32. The arithmetic was right; the argument has been overtaken. The back of the curve is no longer sitting still.

The shape claim survives in part. The spread from two years to thirty closed at 55 basis points, against 53 on Monday — the narrowest of the year — and 139 on 2 January. Even after an eleven-basis-point day at the back, the curve is flatter than a week ago, because the front moved more. What changed is that the long end is now participating rather than absorbing.

The levels, meanwhile, are being described in a way that does not hold up. Several accounts have the thirty-year at its highest since 2004. Treasury's own daily par yield curve contains no thirty-year observation in 2004 at all — not one, in any month. Issuance of the bond was suspended in October 2001, the constant-maturity series stops on 14 February 2002, and it does not resume until 9 February 2006. The last reading at or above Wednesday's 5.40 per cent was 14 February 2002, the final day of the old series. Since the bond was reintroduced, the highest close before this week was 5.37 per cent on 10 September. Wednesday's is the highest of the whole resumed series — a stronger statement, and a true one.

The 2004 figure is real. It belongs to the twenty-year, which at 5.45 per cent was last that high on 28 June 2004, and at Thursday morning's indicative 5.50 was last there on 14 June 2004. The number has been attached to the wrong maturity — and to the maturity that, as we noted on Monday, is still paying more than the thirty-year. That inversion widened again on Wednesday, from four basis points to five. The investor taking the most duration on the curve continues to be paid the least for it.

The ten-year's own comparison does hold. At 5.11 per cent it is at a level last reached on 13 July 2007, nineteen years and two months ago. So are the seven-year at 5.05 and the five-year at 4.99. The two-year at 4.85 is back to 10 June 2024, when the policy rate stood more than a point higher.

What produced the move was two pieces of news and one auction. Brent for November delivery rose 3.9 per cent to $103.08, the Associated Press reported — though the headline flatters the shock. Most trading has already rolled into the December contract, which rose 2.8 per cent to $98.12. A five-dollar premium on the expiring month prices a disruption now rather than a permanent repricing of the barrel: the same front-loaded shape the curve has. Separately, S&P Global's flash survey put US business activity at its strongest in more than five years. "Costs for businesses are leaping at the fastest rate in four years, in part because of expensive oil," said Chris Williamson, its chief business economist, warning those costs would be passed on.

The auction connects the two. Treasury sold $70bn of five-year notes on Wednesday at a high yield of 5.033 per cent with a bid-to-cover ratio of 2.21, on the department's own record of the sale. That is the highest yield paid at a five-year auction since June 2006 and, dealers who track it say, several basis points above where the note traded beforehand. A badly received five-year is the cleanest evidence that the problem is not confined to the policy-rate segment: it is where a Federal Reserve story and a duration story overlap, and it cleared before the ten-year moved, not after.

Traders now price better than even odds of a rate increase at each of the next two meetings. Equities took the message: the S&P 500 fell 0.8 per cent to 7,706.03, the Dow 0.7 per cent to 51,511.59 and the Nasdaq Composite 1.1 per cent to 26,936.04, with smaller companies worse hit again on Thursday.

Thursday's own curve is not settled — the par yields publish at half past three in New York — but indicative trading had the ten-year around 5.16 per cent, the thirty-year around 5.45 and the twenty-year around 5.50. On those indications the thirty-year would extend the resumed-series high again.

The next data point arrives at one o'clock today, when Treasury sells $44bn of seven-year notes settling on 30 September. The seven-year closed on Wednesday at 5.05 per cent, its highest since July 2007. If that sale goes the way the five-year went, the question this desk was asking on Monday — whether September was a front-end event or something broader — will have answered itself in two sessions.