(In millions, except per share amounts)
1st Qtr. | 4th Qtr. | 1st Qtr. | |||||||||
December 3,
2020 |
September 3,
2020 |
November 28,
2019 | |||||||||
GAAP gross margin | $ | 1,736 | $ | 2,068 | $ | 1,366 | |||||
Stock-based compensation | 41 | 37 | 31 | ||||||||
Other | 7 | 6 | 8 | ||||||||
Non-GAAP gross margin | $ | 1,784 | $ | 2,111 | $ | 1,405 | |||||
GAAP operating expenses | $ | 870 | $ | 911 | $ | 848 | |||||
Stock-based compensation | (51 | ) | (52 | ) | (41 | ) | |||||
Restructure and asset impairments | (8 | ) | (50 | ) | 4 | ||||||
Non-GAAP operating expenses | $ | 811 | $ | 809 | $ | 811 | |||||
GAAP operating income | $ | 866 | $ | 1,157 | $ | 518 | |||||
Stock-based compensation | 92 | 89 | 72 | ||||||||
Restructure and asset impairments | 8 | 50 | (4 | ) | |||||||
Other | 7 | 6 | 8 | ||||||||
Non-GAAP operating income | $ | 973 | $ | 1,302 | $ | 594 | |||||
GAAP net income attributable to Micron | $ | 803 | $ | 988 | $ | 491 | |||||
Stock-based compensation | 92 | 89 | 72 | ||||||||
Restructure and asset impairments | 8 | 50 | (4 | ) | |||||||
Amortization of debt discount and other costs | 7 | 6 | 10 | ||||||||
(Gain) loss on debt prepayments, repurchases, and conversions | — | — | (42 | ) | |||||||
Other | 7 | 6 | 8 | ||||||||
Estimated tax effects of above and non-cash changes in net deferred income taxes | (20 | ) | 90 | 13 | |||||||
Non-GAAP net income attributable to Micron | $ | 897 | $ | 1,229 | $ | 548 | |||||
GAAP weighted-average common shares outstanding - Diluted | 1,135 | 1,131 | 1,129 | ||||||||
Adjustment for stock-based compensation and capped calls | 11 | 11 | 9 | ||||||||
Non-GAAP weighted-average common shares outstanding - Diluted | 1,146 | 1,142 | 1,138 | ||||||||
GAAP diluted earnings per share | $ | 0.71 | $ | 0.87 | $ | 0.43 | |||||
Effects of the above adjustments | 0.07 | 0.21 | 0.05 | ||||||||
Non-GAAP diluted earnings per share | $ | 0.78 | $ | 1.08 | $ | 0.48 |