Today · weekly roundup October 16

NVIDIA's China shipments fall 44%; IDC's figures are relayed

IDC data relayed by Reuters and the trade outlet Semiconductor Engineering: in the first half of 2026, NVIDIA's AI accelerator shipments in China fell 44% year on year, and NVIDIA's share by units shipped was 34% against Huawei's 28%. This is a three-step relay; neither the Reuters original nor the IDC report has been reviewed (Semiconductor Engineering, 2026-10-16; Reuters, 2026-10-13). The 34% against 28% counts units shipped, not revenue or compute share. The 44% drop is the change in NVIDIA's China shipment volume. First-half 2025 shares aren't given, so how much the gap narrowed can't be computed. The original doesn't separate US controls on the supply side from Chinese customers switching orders on the demand side.

Concept illustration: on the left, a pale beige map outline lettered CHINA in large letters; in the centre, against a pale pink circle, two stacks of flat boxes, one rust-red and one black, each topped by a grey square plate and fronted by a white tent sign, the left lettered NVIDIA beside a green emblem and the right lettered HUAWEI beside a red emblem. On the right, a person in a black turtleneck, brown trousers and a lanyard badge stands holding a clipboard next to a tall white panel lettered IDC under a blue striped round emblem.

The same week, Saif Khan, founder of the think tank Center for Technology and Statecraft, argued on the ChinaTalk show that the key is not NVIDIA but DUV immersion lithography tools. Khan said on the show that these are the most advanced exposure tools after EUV, that Huawei uses them to make 7nm chips, and that only Japan and the Netherlands build them. Khan's model estimates that a full sales stop today would let the US keep a 10x to 100x lead in annual AI chip output into the mid-2030s, while continued exports could make the two sides' output overlap (ChinaTalk, 2026-10-17). That is a scenario estimate from an advocacy organization; Khan concedes the error bars are wide, and his think tank is pushing for a DUV export ban.

The IDC figure is new evidence for the "export controls and Chinese self-sufficiency" trend SecondSource tracks. The existing call: still in progress, no winner yet. On the US-China gap, controls still work. On Chinese self-sufficiency, several sources already report China refusing to buy NVIDIA and ordering domestic chips, so the controls are acting as a catalyst. Chip smuggling weakens both effects.

Containment (2022-25H1)five rounds of tightening: compute threshold → TPP/ density → HBM → diffusion rule → H20; China's self-sufficiency push predates the controls (Big Fund 2014), the controls shifted it into a higher gear

Reversal and self-lock (2025H2-26H1)US turns toll booth (15% cut on H20/25% on H200), China turns to refusing to buy (purchase bans + domestic-chip orders + 2-trillion compute network); NVIDIA's China share goes to zero; bottleneck moves to HBM

Open ?

Path Acatalyzed self-sufficiency (SemiAnalysis/Kevin Xu relaying/CSIS localization): controls shut off "buy" = subsidize "build", growing a parallel chip stack immune to sanctions over time

Path Bcontrols work (Zuckerberg/Epoch/ Noah Smith): the compute chokepoint is real, Chinese models trail by seven months on average, a measurable gap

Path Cleaks undo it (Epoch smuggling estimates/FT/ cloud-rental cases): smuggling + cloud rental + tools shipped ahead mean the controls neither shut the door nor forced the catalysis that hard

Judgment update: the IDC figure adds weight to the Chinese self-sufficiency side. Huawei's unit share closing in on NVIDIA's is a structural signal, but IDC doesn't separate supply from demand. The US-China gap side has no new number this issue; the October 13 issue's archive pick cited Epoch's estimate of an average seven-month overall gap between US and Chinese models. What would prove this wrong: if Chinese cloud providers resume large NVIDIA purchases and actual H200 sales pick up, that would overturn the part of the call saying China itself has stopped buying NVIDIA, taking over from the US embargo. The verdict date is tied to IDC's next full-year data, around early 2027. How we checked →

Source and checks

This item ran in the brief of Oct 18, 2026, alongside 14 other items. How we checked it, the quote checks and what was still missing that day are on that issue's How we checked page.

Cite this item

SecondSource (2026). "NVIDIA's China shipments fall 44%; IDC's figures are relayed." https://secondsource.io/en/news/2026-10-18-3/. Accessed access date.