After the first two times, do they even need to collude?

Can't they count on each other doing the profitable thing? Especially when they PR it:

> Furthermore, focused investment in HBM is creating a virtuous cycle that improves profitability in the general-purpose memory market. As resources are diverted to HBM, the supply-demand balance for general DRAM is improving.

January 5, 2026 - SK hynix market outlook.

https://news.skhynix.com/en/2026-market-outlook-focus-on-the...