The AI Stack on IDX: Indonesia Owns Both Ends of the Chain and None of the Middle

Indonesia has data centers, copper and tin, and not one listed chip designer, memory maker, network supplier or AI platform — eight of the eleven layers have no IDX representative at all, which means the local AI trade is a bet on being a landlord and a supplier, not a builder, and the most expensive stock on the exchange is priced on 2,000 MW it has not built rather than the 128 MW it actually runs.

Companion post to [The AI Stack: Why Where a Stock Sits Matters More Than Whether It Says "AI"]. September 2026. Run the eleven layers of the AI supply chain against the Indonesia Stock Exchange and something uncomfortable shows up immediately. There is no Indonesian chip designer. No memory manufacturer. No optical networking company. No foundation model. No enterprise AI plat…