Micron's Stock Price Has Corrected 30% From Its All-Time High. Is It Time to Buy?

A 30% stock decline usually grabs investors' attention. Some immediately see a buying opportunity. Others worry that the stock could fall even further.

Micron's (NASDAQ: MU) recent correction has sparked exactly that debate.

But before deciding whether to buy the stock, investors should ask a simple question. Has Micron become cheaper? Or have investors simply become less optimistic?

The answer could determine whether today's pullback represents an opportunity or a warning.

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A lower stock price doesn't always mean a better investment

Many investors make the same mistake after a sharp correction. They compare today's stock price with yesterday's.

Micron recently traded near an all-time high. Today, the stock sits roughly 30% below that level. It feels like a bargain.

But investing doesn't work that way. A stock becomes attractive when its future earnings justify its price, not simply because it trades below a previous high. Only if future earnings remain intact does the current correction lead to a better entry price.

That is why investors should spend less time looking at the chart and more time asking what has changed in the business lately.

Has anything really changed?

So far, the long-term investment story looks largely intact.

Technology companies continue to invest aggressively in artificial intelligence infrastructure, with large tech companies committing hundreds of billions of dollars in capital investments in 2026. Amazon has hiked its spending target to $220 billion, and Alphabet aims to spend its own $200 billion.

As advanced memory remains a critical component inside AI servers, the demand for Micron's products remains extremely high. If those trends continue over the next several years, Micron could still grow revenue and profits for a while.

In other words, the business may look much healthier than the stock price suggests.

So why did the stock still fall if nothing much has changed?

Here's the thing. The market rarely waits for bad news to appear. Instead, it constantly adjusts expectations.

A year ago, investors expected Micron's profits to surge as AI spending accelerated. But Micron outperformed even the most robust estimates, leading to a remarkable surge -- more than 700% in share price over the last 12 months.

Today, many investors still expect strong growth. Yet they have become more cautious. Some worry that memory manufacturers will eventually expand supply to levels beyond demand. Others question whether today's exceptionally strong profits can last once the AI infrastructure boom matures.

And there's also a group of early investors just cashing out their massive profits.

In other words, those concerns do not necessarily mean Micron's business has weakened. They simply mean investors have become less willing to pay for future growth.

Here are the key areas to focus on

When thinking about Micron's stock trajectory from here, investors usually focus on the next quarterly earnings report.

But that's not where they should focus. The real question isn't whether Micron can report another strong quarter, but whether the company can keep earning significantly more money five years from now than it does today.

If the answer is yes, today's pullback could prove to be a temporary setback. If the answer is no, the recent decline may simply reflect more realistic expectations.

In other words, rather than guessing where the stock will go next, I would watch three things over the coming quarters.

First, does demand for AI memory remain strong?

Second, can Micron continue growing its profits?

Third, can the company maintain healthy margins even as competitors expand production?

If Micron continues delivering on all three, the long-term investment thesis remains intact.

What does it mean for investors?

Micron's 30% correction could be a great opportunity to buy. It could, however, expose risks that investors previously ignored.

The important point is that a lower stock price does not automatically make a stock more attractive. Instead, investors should ask whether the business fundamentals changed recently.

If Micron continues to grow profits while AI infrastructure spending remains strong, today's correction could prove an attractive entry point for long-term investors.

But if the company's current profits represent the peak of another memory cycle, the stock may have further to fall.

Ultimately, investors need to answer this question themselves before making a final call on Micron's stock.

Lawrence Nga has no position in any of the stocks mentioned. The Motley Fool has positions in and recommends Alphabet, Amazon, and Micron Technology. The Motley Fool has a disclosure policy.