In Q1'26, GOOGL's total operating expenses reached $28.93B USD, comprising $17.03B in R&D expenses and $11.90B in SG&A expenses, reflecting a slight decline from the peak of $32.13B in Q4'25 driven by a notable drop in R&D spending. From Q2'23 to Q1'26, R&D expenses exhibited steady growth from $10.59B to a high of $18.57B in Q4'25 before retreating to $17.03B, while SG&A expenses fluctuated between $9.45B and $14.60B with no clear upward trajectory, resulting in overall operating expenses rising from $20.81B to $28.93B amid volatility, particularly in the later periods where R&D dominated the stack.