In Q4'26, NVIDIA's total operating expenses reached $6.79B USD, with R&D expenses at $5.51B USD driving the majority of the increase, while SG&A expenses contributed $1.28B USD, reflecting ongoing investments in innovation amid robust growth. From Q1'24 to Q4'26, both R&D and SG&A expenses exhibited a consistent upward trend, with R&D surging from $1.88B USD to $5.51B USD—a 193% rise—dominated by accelerating quarterly gains post-Q3'25, and SG&A climbing steadily from $633M USD to $1.28B USD at a more moderate 103% pace, underscoring the company's focus on research amid expanding operations in this stacked bar chart.