Apple heads into its July 30 (fiscal Q3) print off a March-quarter blowout — 49.3% gross margin, iPhone +22%, Greater China +28% — but the tension the print resolves is not the top line; it's whether the record margin can survive a cost squeeze Apple itself just flagged. In the Q2 10-Q, management warned that component supply constraints and rising NAND/DRAM/advanced-semiconductor prices are expected to "intensify" — a headwind that had not yet hit reported margins. The setup is asymmetric: the demand story is proven, so the print trades on the gross-margin guide and any language walking back the record. Watch whether June-quarter gross margin holds the ~47%+ band and whether management reiterates or softens the component-cost warning.