In Q2'26, Qualcomm's total operating expenses reached $3.36B USD, with R&D expenses at $2.46B USD and SG&A expenses at $898M USD, reflecting a modest quarterly increase from Q1'26's $3.32B USD total. From Q3'23 to Q2'26, operating expenses exhibited an overall upward trend, rising from $2.84B USD to $3.36B USD, driven primarily by steady growth in R&D expenses (from $2.22B USD to $2.46B USD) and more volatile increases in SG&A (from $618M USD to $898M USD). Notable spikes occurred in Q4'25, where total expenses hit $3.28B USD amid elevated SG&A at $910M USD, while periods of stability, such as Q1'24 to Q3'24, showed minimal fluctuations around $2.7B-$2.9B USD, underscoring R&D's dominant share (averaging over 75%) in the stacked bar structure.