TSMC price hikes stay in a 5% to 15% band; memory carries this cycle's pricing — resolves 2026-10-31

The debate: how much of its bargaining power TSMC turns into price increases; our 2026-08-16 deep dive found that its pricing behavior has an upper bound, with increases in a 5% to 15% band, no multiple-fold hikes, and no part in circular financing that would hand it equity in its customers.

Why it matters: if that bound holds, the main pricing force in this cycle sits in memory rather than in foundry, and memory makers' margins are the check on that reading, with Micron guiding to an 86% gross margin for the quarter ending in late September 2026.

Who is on each side: we bet that the bound holds; the opposite reading is that TSMC converts its bargaining power directly into steep increases, which a single list-price rise of 20% or more on any advanced node would confirm.

Our call: TSMC's price increases have an upper bound. Increases stay within a 5% to 15% band, there are no multiple-fold hikes, and TSMC stays out of circular financing that would hand it equity in its customers; in this cycle the main pricing force sits in memory, not in foundry. This card tests whether that bound, and the memory reading, hold through the end of October 2026.

Sources still being linked up — the node(s) behind this call don't have a clickable original link resolved yet. Logged for follow-up.

Check TrendForce's press center for releases between 2026-08-16 and 2026-10-31 that report price changes for TSMC's advanced nodes (N3, N2, A16). If there is at least one, and every one shows a single increase below 20%, the call is right; if any reports a single list-price increase of 20% or more on one advanced node, it missed. If there are none in the period, the call cannot be decided; this was written in advance, and other sources such as Nikkei will not be used to score a hit. Logged but not scored: whether the gross-margin bridge on TSMC's mid-October Q3 earnings call shows pricing for the first time, how much of the 3 to 4 percentage-point N2 dilution materializes, and whether Micron's 86% gross-margin guidance for the quarter ending in late September is met.

What would overturn it

(1) Any advanced node with a single list-price increase of 20% or more: the upper bound has to be revised. (2) TSMC disclosing equity or warrants in AI customers or their end customers, verifiable in a 6-K filing or on an earnings call: the claim that it stays out of circular financing is void. (3) Credible reports of TSMC pricing differently by customer: the no-price-discrimination pillar falls. (4) Memory contract prices falling for two straight quarters, with Micron and SK hynix margins clearly down: the memory reading has run its course.