GIGA-BYTE Technology closed at 151,500 won on July 9, up 4.12%, marking a 380.95% gain since the start of 2026—outpacing SK Hynix's roughly 200% rise and contrasting sharply with the KOSDAQ's 14.20% decline over the same period. The Seoul-based manufacturer of automated optical inspection (AOI) and automated optical repair (AOR) equipment for semiconductor substrates has benefited from accelerating orders as global substrate makers upgrade production lines to meet AI chip performance demands. Customers including Japan's Ibiden and Shinko Electric, Taiwan's Unimicron and Nanya PCB, and Samsung Electro-Mechanics are investing in advanced flip-chip ball grid array (FC-BGA) substrate capacity, where circuit miniaturization and layer count increases require tighter defect management—driving demand for GIGA-BYTE's inspection and repair systems.
GIGA-BYTE Stocks Gain 381% Year-to-Date as KOSDAQ Falls 14%
GIGA-BYTE's year-to-date stock performance of 380.95% significantly exceeds the KOSDAQ index's 14.20% decline over the same period. On July 9, the stock rose 4.12% to close at 151,500 won, following a roughly 4% gain the previous day—when the KOSDAQ fell more than 5%. The company's rally also outpaced SK Hynix, widely regarded as a leading AI semiconductor stock, which posted an approximately 200% gain during the same timeframe.
FC-BGA Substrate Inspection Equipment Demand Rises with AI Chip Complexity
GIGA-BYTE manufactures AOI and AOR equipment installed on FC-BGA substrate production lines. AOI systems capture circuit images to identify defects, while AOR systems use lasers to repair faulty areas. The company supplies equipment to global substrate manufacturers including Ibiden, Shinko Electric, Unimicron, Nanya PCB, and Samsung Electro-Mechanics. FC-BGA substrates connect high-performance chips—such as AI graphics processing units (GPUs), central processing units (CPUs), and application-specific integrated circuits (ASICs)—to server boards, transmitting electrical signals at high speed. As AI semiconductor performance increases, substrate circuits become denser and layer counts rise, making defect management more critical. LS Securities stated that the core change in the FC-BGA industry is not simply substrate area expansion but circuit miniaturization and high-layer-count construction, adding that even existing production line upgrades can drive demand for inspection equipment.
Order Backlog Exceeds 60 Billion Won with China and Japan Contracts
Meritz Securities reported that GIGA-BYTE's order backlog, including recent China customer orders, exceeds 60 billion won. The firm noted that substrate manufacturers' aggressive capital expenditure is accelerating equipment orders. GIGA-BYTE disclosed multiple supply contracts in 2026: a 7.25 billion won inspection equipment deal with a Chinese semiconductor substrate maker, a 9.47 billion won inspection and repair equipment contract with a Japanese substrate manufacturer, and additional agreements with customers in Korea, Taiwan, and Singapore.
Q2 2026 Operating Profit Forecast to Jump 115% Year-over-Year
According to AI-based investment information service Epic AI, the consensus for GIGA-BYTE's second-quarter 2026 revenue and operating profit stands at 17.5 billion won and 4.3 billion won, respectively—representing year-over-year increases of 97.1% and 114.7%. For the full year 2026, analysts project revenue of 88.6 billion won and operating profit of 25.8 billion won. The 2027 outlook forecasts revenue of 176.3 billion won and operating profit of 71.3 billion won, with the latter figure 2.8 times the 2026 estimate. Factory capacity expansion is a key factor for investors, as equipment companies cannot convert orders into revenue without sufficient production capability. GIGA-BYTE previously declined some orders during strong demand periods due to capacity constraints. The company's existing factory has a maximum annual production capacity estimated at around 100 billion won.
FAQ
What drove GIGA-BYTE's 381% stock gain in 2026?
GIGA-BYTE's 380.95% year-to-date stock increase as of July 9, 2026, was driven by rising orders for its FC-BGA substrate inspection and repair equipment. Global substrate manufacturers including Ibiden, Shinko Electric, Unimicron, Nanya PCB, and Samsung Electro-Mechanics are expanding and upgrading production lines to meet AI chip performance requirements, which demand tighter circuit defect management.
How much is GIGA-BYTE's current order backlog?
Meritz Securities reported that GIGA-BYTE's order backlog exceeds 60 billion won, including recent China customer orders. The company disclosed 2026 contracts totaling 7.25 billion won with a Chinese substrate maker and 9.47 billion won with a Japanese substrate manufacturer, plus additional deals with customers in Korea, Taiwan, and Singapore.
What are analysts forecasting for GIGA-BYTE's 2026 earnings?
The consensus for GIGA-BYTE's second-quarter 2026 revenue and operating profit is 17.5 billion won and 4.3 billion won, respectively—up 97.1% and 114.7% year-over-year. Full-year 2026 estimates are 88.6 billion won in revenue and 25.8 billion won in operating profit, with 2027 projections reaching 176.3 billion won in revenue and 71.3 billion won in operating profit.
