--- title: "GM pays interest to wait in line for chips as automobile industry experiences memory shortage" description: "AI data centers absorbed the memory supply that cars run on, and GM is answering with a direct Micron deal plus a $4.5 billion prepay facility backed by JPMorgan and Santander. The buyer now borrows at SOFR plus 1.55%; the seller runs an 84.6% gross margin." publisher: "The Inference" section: "Chips" published: 2026-09-24T01:44:36.593Z modified: 2026-09-24T01:44:36.593Z canonical: https://theinference.org/article/gm-pays-interest-to-wait-in-line-for-chips-while-micron-books-an-84-6-margin language: en keywords: "Micron, General Motors, Semiconductors, Memory, Automotive, Supply Chain" --- # GM pays interest to wait in line for chips as automobile industry experiences memory shortage > AI data centers absorbed the memory supply that cars run on, and GM is answering with a direct Micron deal plus a $4.5 billion prepay facility backed by JPMorgan and Santander. The buyer now borrows at SOFR plus 1.55%; the seller runs an 84.6% gross margin. The chips that watch the road in a Chevrolet now compete for fab time with the GPUs training AI models, and the carmaker gets what the cloud leaves over. On 1 July, General Motors signed [a Strategic Customer Agreement with Micron](https://finance.yahoo.com/technology/articles/micron-general-motors-sign-strategic-123000250.html) for LPDRAM, NOR and UFS NAND, the certified memory behind driver assistance and digital cockpits, supplied in part from the $2 billion Manassas, Virginia fab [1][2]. Data centers were the first stop, as The Inference charted in [Memory Is Eating the AI Boom](https://theinference.org/article/memory-is-eating-the-ai-boom). The assembly line is next. ## A $4.5 billion parts warehouse, kept off the books The hedge goes further than a contract. In [an 8-K filed 7 August](https://money.usnews.com/investing/news/articles/2026-08-11/gm-inks-deal-to-guard-against-future-parts-supply-shocks), GM set up a purchasing facility of up to $4.5 billion: Procura Auto Parts, funded by a JPMorgan Chase and Santander syndicate, prepays suppliers to buy and hold inventory set aside for GM's production lines [3][4]. GM guarantees the banks repayment with irrevocable payment undertakings that accrue interest at SOFR plus 1.55% a year and fall due by 6 August 2029. The prepayments stay outside adjusted automotive free cash flow until GM consumes the parts [1][4]. Which parts the money protects, GM has not said [3][4]. ## The buyer borrows; the seller sets the price The filing stack sets one piece of arithmetic against another: GM pays interest at SOFR plus 1.55% to hold inventory it declines to specify, while [Micron](https://theinference.org/markets/companies/micron), the chipmaker it just signed, keeps 85 cents of every sales dollar [1][3][5]. The buyer finances the stockpile. The seller prices it. ## Sixteen contracts and a sold-out fab Micron's May quarter booked $41.46 billion of revenue, up 346% year over year, at an 84.6% gross margin, with the September quarter guided to roughly $50 billion [5][6]. High-bandwidth memory is sold out through 2026 [6]. *Chart: **Micron's gross margin has run from 18.5% to 84.6% in ten quarters** Line chart of Micron's quarterly GAAP gross margin from Q1 2024 through Q2 2026, rising from 18.5% to 84.6%.* *GAAP gross margin, percent of revenue, by quarter. Calendar labels shown; Q2 '26 is Micron's fiscal Q3 2026, ended 28 May 2026. Source: Sharadar quarterly fundamentals from Micron's SEC filings. [5]* The lock-in runs wider than GM. Around the May quarter Micron signed its first multi-year strategic customer agreements, partially fixed-price deals worth roughly $22 billion, and the GM contract is one of 16 [2][6]. Ford followed five days later with its own, and seven more sit with automotive partners including Denso, Hyundai Mobis and [Qualcomm](https://theinference.org/markets/companies/qualcomm), understood to lock volumes and prices for three to five years [7][9]. ## A cycle, all the same GM calls the deal proactive, not a response to any current disruption [1]. [S&P Global Mobility still puts automotive DRAM contract prices up 70 to 100% in 2026 against 2025](https://gcn.com/gm-locks-micron-chip-deal-billion/21770/), and Morningstar prices the supplier accordingly: "a particularly strong and particularly durable up-cycle, but a cycle all the same" [1][6]. Buyers have a second door: Samsung overtook Micron in automotive memory last year, 40% to 36%, per S&P Global Mobility data [7]. Denso's withdrawn bid for Rohm, followed by power-chip integration talks among Rohm, Toshiba and Mitsubishi Electric, shows the industry reaching for the same control [1][8]. ## September 30 sets the queue Whether car buyers pay for all of this is the part no source can prove yet; nothing ties DRAM escalation to 2027 sticker prices. Micron reports [fiscal Q4 on 30 September](https://investors.micron.com/news-releases), and the tell is fiscal Q1 guidance [6][9]. If [the sold-out era stretches into 2027](https://theinference.org/article/cxmt-starts-mass-producing-cheaper-dram-as-rivals-bet-the-shortage-lasts-to-2030), the line GM is paying interest to stand in gets longer, not shorter. *Chart: **Revenue has gone from $5.8B to $41.5B in ten quarters, with roughly $50B guided for September** Column chart of Micron quarterly revenue rising from $5.8 billion in early 2024 to $41.5 billion in the May 2026 quarter, with the September 2026 quarter guided at roughly $50 billion.* *Quarterly revenue in US dollars, calendar labels matching the margin chart. Q3 '26 (guide) is the September quarter, Micron's fiscal Q4 2026, guided to roughly $50 billion and not yet reported; the reported quarter ended 28 May 2026 is fiscal Q3 2026. Sources: Sharadar quarterly fundamentals from Micron's SEC filings (5); AInvest (6). [5][6]* ## Takeaway AI data centers took the memory supply cars run on, and GM is now paying interest at SOFR plus 1.55% to stand in what is left of the line, through a $4.5 billion prepay facility that stays off its adjusted automotive free cash flow. Micron, meanwhile, books an 84.6% gross margin and guides the September quarter to roughly $50 billion; its fiscal Q4 report on 30 September, and the fiscal Q1 guidance inside it, tells whether the queue gets longer. ## Sources 1. [GCN, "GM locks in Micron chip deal and a $4.5 billion parts reserve to shield production from automotive memory supply pressure", 23 September 2026](https://gcn.com/gm-locks-micron-chip-deal-billion/21770/) 2. [Micron Technology press release via GlobeNewswire (Yahoo Finance), "Micron and General Motors Sign Strategic Agreement to Secure Supply and Accelerate Innovation", 1 July 2026](https://finance.yahoo.com/technology/articles/micron-general-motors-sign-strategic-123000250.html) 3. [Reuters via U.S. News & World Report, "GM Inks Deal to Guard Against Future Parts-Supply Shocks", 11 August 2026](https://money.usnews.com/investing/news/articles/2026-08-11/gm-inks-deal-to-guard-against-future-parts-supply-shocks) 4. [GCN, "GM locks in $4.5 billion parts deal to guard supply chain against chip shortages and disruptions", 22 August 2026](https://gcn.com/supply-chain-locks-billion-parts-deal/21031/) 5. [Sharadar quarterly fundamentals from Micron's SEC filings, retrieved 23 September 2026](https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&CIK=0000723125) 6. [AInvest, "Micron Is a Trillion-Dollar Company Now: September 30 Is About Whether the Peak Lasts", 19 September 2026](https://www.ainvest.com/news/micron-trillion-dollar-company-september-30-peak-lasts-2609/) 7. [News18 via MSN, "Micron locks in auto memory deals with Hyundai Mobis, Harman", 18 July 2026](https://www.msn.com/en-in/technology/hardware-and-devices/micron-locks-in-auto-memory-deals-with-hyundai-mobis-harman/ar-AA28bIVw) 8. [Reuters via Yahoo Finance, "Toyota supplier Denso to withdraw bid for Rohm, Nikkei says", 24 April 2026](https://finance.yahoo.com/markets/stocks/articles/toyota-supplier-denso-withdraw-bid-022009369.html) 9. [Micron Technology investor relations, news releases (Ford agreement, 6 July 2026; fiscal Q4 report date, 30 September 2026), retrieved 23 September 2026](https://investors.micron.com/news-releases) --- GM pays interest to wait in line for chips as automobile industry experiences memory shortage — The Inference. Canonical: https://theinference.org/article/gm-pays-interest-to-wait-in-line-for-chips-while-micron-books-an-84-6-margin