AI has opened an inflation channel the Fed's rates cannot reach

A chain we linked wrongly three times

In our briefs of 29 and 30 September and 1 October, we linked the oil shock to a Fed hike three times. Each time the data pointed the other way. Brent's December contract has closed above $100 every session since 1 October. Yet after 29,000 jobs were reported on 2 October, the odds of an October hike fell to 20%. The lesson of those three misreads is simple: oil above $100 does not, on its own, set the US rate path. In this report we separate the rate leg from oil and read it through three distinct triggers: employment, price indices and AI investment.

The yield curve shows why the door has not closed despite 20% odds. Treasury data show that on 6 October the 3-month yield closed at 4.21%, the 1-year at 4.46% and the 2-year at 4.79%. On 16 September the Fed raised rates by 25 basis points to a 3.75–4.00% range, in a 12–0 vote. With the 1-year yield 46 basis points above the top of the band, the market is pricing a pause in October. It is also pricing further tightening over the following 12 months.

The new channel shows up in the import bill

According to BEA data released on 6 October, the August deficit widened by 13.7% to $105.6bn. Imports hit a record $420.8bn, while exports stood at $315.2bn. Capital goods imports rose by $6.2bn to $146.4bn. Semiconductors accounted for $2.4bn of the increase and industrial machinery for $1.3bn. The bilateral deficit with Taiwan reached $18.3bn in a single month.

Here we correct our thesis on one point. The $105.6bn deficit does not itself generate inflation. By shifting part of domestic demand abroad, imports ease pressure on domestic capacity. Computer accessory imports fell by $1.6bn in August, so attributing the whole increase to AI hardware would be an exaggeration. The deficit really says two things. According to BNN Bloomberg, trade could subtract up to 2.5 points from third-quarter growth, but the cause is strong equipment spending, not weakness. And as the deficit widens, so does America's external financing need, which is being met at a 10-year yield of 5.27%.

The bottleneck is in memory, and rates do not reach it

The inflation channel opens not in the $146.4bn import volume but in chip prices. According to TrendForce, Nanya can meet only 50–60% of customer demand, and more than 60% of its supply is tied up in long-term contracts. Standard DRAM contract prices are expected to rise by 10–15% in the fourth quarter, and NAND flash prices by 15–20%. TrendForce ties any relief to new fab capacity. The constraint behind the 40–50% of unmet demand, in other words, lies on the supply side.

On 6 October Daly gave this bottleneck a name. According to FXStreet, she listed three shocks: tariffs, oil from the Middle East and AI demand. IndexBox reports that Daly described Silicon Valley companies switching to forward contracts for memory. She said the shock could outlast the 1–3 year fade the Fed assumes. Her sharpest warning came in two parts. If AI chips compete with chips for cars and household appliances, the post-pandemic bottleneck could recur. And the companies making these investments are the ones least responsive to high rates.

The second part is the Fed's real constraint. If a 3.75–4.00% policy rate cannot slow AI investment, rate-sensitive sectors such as housing and small business must slow more to suppress the same inflation. Williams cited PCE of 3.7% on 29 September; PCE is the personal consumption expenditures price index the Fed targets. That leaves a real buffer of only 0.3 points below the top of the band. ISM's services prices index rose to 74.0 in September, its highest since July 2022.

Where the chain reaches Türkiye

A US long end above 5% is pulling capital towards it. On 6 October the 30-year yield stood at 5.64%, 85 basis points above the 2-year. Investors are demanding a clear term premium, that is, extra yield for holding long-dated bonds. According to Ekonomim, foreigners sold $409.9m of lira government bonds and $434.4m of corporate bonds in the week of 25 September. Bond outflows over two weeks reached $1.3bn.

The first driver of the outflow that began on 18 September was a domestic funding crisis; US yields alone do not explain it. But as the US 1-year yield prices further tightening, the lira bond's relative yield advantage narrows. Türkiye's 10-year yield stood at 32.82% on 6 October, and five-year CDS at 255.29 basis points on 5 October. As long as the Fed's hike door stays open until December, these two gauges will tolerate domestic developments less.

What comes next

Three dates matter over the next three weeks, and none of them is about oil. The September minutes, due at 21:00 TRT on 7 October, will show how often AI demand was cited as an inflation risk in the 12–0 hike decision. The September CPI on 14 October will test, through computer and electronics items, whether the chip channel is reaching consumers. The 27–28 October FOMC will tell us whether the hike has been deferred to December.

Talay reading: the most likely path (50%) is that the Fed holds in October and keeps the December door open. The chip channel feeding into CPI (30%) would take the 2-year yield to 5% and make a December hike the base case. A slowdown in AI spending, or payrolls falling below 29,000 (20%), would close the door. What would falsify our reading: core goods prices easing in the 14 October CPI while the 1-year yield drops below 4.00%.