Shares shifted as GigaDevice Semiconductor (3986.HK) surged to HK$714.50, capping a volatile week in which the stock swung from HK$654 to above HK$700 on the back of broad AI-fueled enthusiasm for memory and chip names listed in Hong Kong. GigaDevice Surfs AI's Memory Chip Bonanza to HK$714 — but How Long Can a Supply Squeeze Power This Stock?

Shares shifted as GigaDevice Semiconductor (3986.HK) hit HK$714.50 in live trading, extending a wild week that saw the stock swing from HK$654 to above HK$714 — a move underpinned by a sweeping rally in Hong Kong-listed memory chip names on surging AI infrastructure spending. Since its Hong Kong listing in January, GigaDevice's market capitalization has surged by 337% , raising the question of whether fundamentals can keep pace with sentiment.

• A Profit Explosion Backs the Hype — For Now

In Q1 2026, GigaDevice posted earnings per share of CN¥2.19 — up from CN¥0.35 a year earlier — on revenue of CN¥4.19 billion, a 119% jump. Net income surged by CN¥1.23 billion, and profit margins widened to 35% from 12%.

Full-year 2025 results were similarly strong: revenue rose 25% to CN¥9.2 billion (~US$1.33 billion) and net profit climbed 49.5%. Those are real numbers, not just hope — but the acceleration is largely tied to soaring chip prices rather than unit volume gains.

• A Supply Crunch That Could Last Half a Decade

SK Hynix announced plans to double memory wafer capacity over five years, framing memory's transformation from a cyclical commodity into a "strategic AI core asset."

SK Hynix's chairman warned the memory capacity bottleneck could persist until 2030, while Japan's Kioxia said hyperscale data centers are seeking supply contracts stretching to 2029 and beyond. For GigaDevice, which holds an 18.5% global share in NOR Flash memory , a prolonged shortage supports pricing power — but also invites competition.

• The Valuation Math Gets Trickier at These Levels

Both the stock's price-to-earnings and price-to-sales ratios have been bid up significantly, though growth-adjusted forward ratios of 41.9x earnings and 21.3x sales sit in the lower-to-mid range among Hong Kong- and U.S.-listed peers.

Analysts expect niche DRAM prices to retain upside through 2026, but beyond 2027 new capacity may trigger high-level volatility and a possible pullback from peak pricing. Shareholders need the AI buildout to keep accelerating just to justify current levels.

• A Hidden Catalyst — and a Risk

GigaDevice holds a strategic investment in ChangXin Memory Technologies, China's leading DRAM maker , whose upcoming listing on Shanghai's STAR Market could draw fresh investor interest to GigaDevice. But that link cuts both ways: any regulatory friction around ChangXin would ripple directly into GigaDevice's balance sheet. For now, the trade is working — the real test comes when chip prices plateau.