In Q2'26, Apple's total operating expenses reached $18.9B USD, with R&D expenses at $11.4B USD and SG&A expenses at $7.5B USD, marking a significant quarterly increase driven primarily by elevated R&D investments. Over the period from Q3'23 to Q2'26, total operating expenses exhibited a steady upward trend, rising from $13.4B USD to $18.9B USD, with R&D expenses showing consistent growth from $7.4B USD to $11.4B USD amid innovation-focused spending, while SG&A expenses fluctuated mildly between $6.3B USD and $7.5B USD before stabilizing around $7B USD in recent quarters. This pattern highlights R&D as the dominant driver of expense expansion, with no major declines observed across the stacked bar chart.