Been looking at where to deploy some cash in this market, and honestly, the setup feels pretty solid right now. The S&P 500 is up nearly 100% since late 2022, and major banks are still calling for more upside this year. Deutsche Bank's targeting 8,000 on the index, which would be another 15% from here. That kind of tailwind makes me think about which growth stocks to buy that could ride this wave.

I've narrowed it down to three names that seem worth considering if you've got around a grand to put to work. The thesis here is straightforward: one's betting on a transformative technology that's still early, and two others are positioned to benefit from massive infrastructure spending.

First up is IonQ. Quantum computing is still in its infancy, but McKinsey is projecting the market could balloon from $4 billion in 2024 to $72 billion by 2035. That's the kind of growth trajectory that gets my attention. IonQ has been executing like crazy—their revenue more than doubled in the first nine months of 2025, with Q3 alone up 222%. They just hit a world record 99.99% two-qubit gate performance, which basically means their quantum systems are becoming practical and reliable. The stock's expensive at 158 times sales and definitely volatile, but if you're thinking long-term, it's one of those growth stocks to buy that could really pay off.

Now, the AI infrastructure angle is where I see some of the most compelling value right now. Gartner's forecasting AI infrastructure spending will jump 41% in 2026 to hit $1.4 trillion. That's real money flowing into the sector.

Celestika caught my eye here. They're designing and manufacturing the networking components that go into AI accelerator chips from Broadcom, Marvell, AMD, and Intel. They're also building the rack-scale solutions that hyperscalers need for their AI data centers. Revenue jumped an estimated 27% in 2025 to $12.2 billion, and the momentum looks like it's accelerating. Trading at just 3.2 times sales, it feels like a no-brainer for growth stocks to buy right now given where the company is in its cycle.

Micron Technology is another one I keep coming back to. Memory chips are the unsung hero of this whole AI buildout, and Micron's positioned perfectly. They're trading at less than 10 times sales with an 11 forward earnings multiple, which is genuinely cheap. Here's what matters: memory chip demand is massively outpacing supply, and that shortage is pushing prices up. Even as chipmakers add capacity, it takes time to bring new facilities online. That supply crunch could persist through 2028, keeping memory prices elevated. Micron's earnings could quadruple this fiscal year on the back of 100% sales growth. After a 243% run-up over the past year, it still looks like it has room to run.

So if I'm thinking about growth stocks to buy with real conviction right now, these three represent different angles on where the market's headed: quantum computing's inflection point, and the infrastructure buildout that's happening around AI. The valuations on two of them actually look reasonable for the growth they're delivering. That's the kind of setup I'm paying attention to.