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AMD reported last night and the print was better than the setup asked for. Revenue $11.5B against a street around $11.3B, up 50% year over year. Non-GAAP EPS $1.66 against about $1.61. Data center did $6.7B, up 107%, now 58% of the whole company. And they guided Q3 to roughly $13B when the street was sitting at about $12.5B, so they beat the guide by half a billion.
The stock closed up 7% into the print at $518.58 and then dropped about 9% after hours to around $472.
The explanation going around this morning is a gross margin miss, 54% against a 56% expectation. I'd check that one before repeating it. AMD reports two gross margin numbers. GAAP came in at 54%, non-GAAP came in at 56%. The 56% everyone is calling "the expectation" was AMD's own non-GAAP guide, so the comparison being drawn is a GAAP result against a non-GAAP estimate. Like for like, the margin landed exactly on guidance and was up about a point sequentially.
So if the margin hit, why the drop.
Two things I'd point at, and I don't think either one is dramatic.
The first is just the run-up. The stock was already up 7.7% on the day going into the print, and it's up something like 190% over the past year. Consensus wasn't really the bar that mattered. Whoever was buying at $518 that afternoon needed more than a $500M guidance beat, and they didn't get it.
The second is more interesting to me, and it's in the guide rather than the print. Q3 revenue is guided up about 13% sequentially. Q3 gross margin is guided at about 56%. Flat. Same as the quarter they just did.
That flat line is worth sitting with, because Jean Hu explained the mechanism on the call herself. She said margin is primarily driven by business mix, that server CPU growth is accretive, and that the data center AI business currently sits slightly below the corporate average. So the fastest-growing part of the company is also the part that dilutes margin as it grows. Data center is already 58% of revenue and they guided it to more than double again in 2027.
Put those together and I think you get the actual question. Nvidia holds gross margin in the seventies, a lot of which is CUDA making it expensive to leave. The bull case for AMD needs its margin to walk up toward that as Instinct matures. But the more the mix tilts toward the exact product driving the growth, the harder that walk gets, at least until volume brings the cost down. Management does expect improvement through 2027 as server scales and embedded recovers. That's a real answer. It's also a 2027 answer.
Worth saying the demand side isn't the argument here. Lisa Su said customer pull for Helios is running ahead of their own forecast, it ships in Q3 and ramps into 2027, and the named commitments aren't small: Anthropic at up to 2 gigawatts of MI450 with the first gigawatt in H1 2027, Microsoft putting Helios on Azure, OpenAI and Meta at multi-gigawatt scale.
Almost none of that is inside these numbers.
One thing that keeps this honest in the other direction. Since 2023 AMD has missed consensus exactly twice, both times by fractions of a cent, and the stock still closed lower the day after earnings in seven of twelve reports. If last night's move holds through today's close, that's eight of thirteen. At some point a pattern that consistent stops being about the quarters and starts being about what the price already assumes.
No verdict from me, I'm trying to frame the bet rather than call it. For anyone who follows this closely: does a flat 56% guide into a quarter growing 13% sequentially bother you, or is mix dilution just what taking share costs and you'd expect it to resolve once MI450 volume lands? And what gross margin are you actually underwriting for 2027?
(Numbers from AMD's Q2 2026 release, August 4 2026, and the Q2 earnings call. Information, not advice, so tell me where I've got this wrong.)