The latest data point for WDAY's operating expenses in Q4'26 shows R&D expenses at $691M and SG&A expenses at $925M, resulting in total operating expenses of approximately $1.616B USD. This represents a sequential increase from Q3'26 totals, driven primarily by higher SG&A spending amid ongoing business expansion. Over the period from Q1'24 to Q4'26, operating expenses have exhibited a consistent upward trend, growing from $1.287B to $1.616B USD, with an average quarterly increase of about 5%. R&D expenses rose steadily from $600M to $691M, reflecting sustained investment in innovation, while SG&A expenses surged more aggressively from $686M to $925M, indicating scaling administrative and sales efforts; notable acceleration occurred post-Q1'25, underscoring potential margin pressures despite revenue growth assumptions in financial modeling.