A key focus this earnings season, which includes announcements from Samsung Electronics, SK hynix, Microsoft, Meta, and Amazon, is whether big tech can sustain AI investment and has the cash-generating power and financing capacity to support it. According to financial data firm FnGuide, SK hynix's second-quarter revenue is estimated at 84.1693 trillion won, up 278.6% from a year earlier, and operating profit at 64.2448 trillion won. Samsung Electronics signaled record quarterly results with revenue of 171 trillion won and operating profit of 89.4 trillion won. Investors are paying more attention to commentary on memory supply-demand and the sustainability of AI investment than the strong results. In recent U.S. big tech earnings, Alphabet beat expectations and raised its CAPEX plan, but its free cash flow turned negative, sending the stock lower. Analysts noted the market's gaze is shifting from growth to capital efficiency and cash-generating power, with the financing burden from expanding AI investment emerging as a new variable due to higher interest rates and rising oil prices pushing up the cost of capital.