Micron and Sandisk stocks are soaring today, but the stunning memory chip rally could mean bad news for you

The prices of memory chip stocks are once again on the rise as a global shortage in random access memory (RAM) continues.

Over the past five days alone, the share prices of the four largest memory makers traded on U.S. markets have risen significantly. And today, those same stocks are off to another good start. Here’s what you need to know.

Why is there a memory shortage?

Since the latter half of 2025, analysts and industry insiders have warned of a looming memory chip shortage coming in 2026—and it’s one of the few tech predictions that have been right.

This year, the world is in a full-blown memory crisis. There isn’t enough computer memory to go around, and that scarcity is leading to surging demand—and surging RAM prices.

The driving force behind the memory chip shortage is artificial intelligence. But not the AI itself. Rather, the hardware companies need to run their AI systems.

An artificial intelligence system like ChatGPT or Google’s Gemini requires massive data centers to run on and compute the billions of requests these chatbots get every day.

Those data centers, in turn, need servers, and those servers need memory to carry out the AI tasks.

The world is currently in the middle of an AI data center build-out boom, and that massive data center expansion is leading to a surge in memory demand the likes of which the industry has never seen.

When memory makers are unable to keep up with demand, a shortage arises, which is exactly where we are today.

Micron and Sandisk stocks are skyrocketing

There are four major memory makers traded on the U.S. markets: 

• Micron Technology, Inc. (Nasdaq: MU)
• Sandisk Corporation (Nasdaq: SNDK)
• Western Digital Corporation (Nasdaq: WDC)
• Seagate Technology Holdings (Nasdaq: STX)

Of those four, Micron and Sandisk are the two firms that primarily make short-term computer memory, which is designed to temporarily store information and help carry out tasks at lightning speed.

This kind of memory is seeing the worst shortages. Western Digital and Seagate primarily make long-term computer memory, such as for SSDs, used to retain your documents and photos for a long time.

Given that all four of these companies are seeing demand for their memory products soar, it’s little surprise their stock prices have been soaring as of late, too.

In the past five days alone, as of Friday’s closing bell, the share prices of all four companies have risen significantly.

Over the previous five-day period:

• Micron stock has risen 15%
• Sandisk stock has soared 25%
• Western Digital is up 11%
• Seagate is up nearly 9%

And today, those memory makers are seeing their share prices rise even further. As of this writing, in premarket trading, MU shares are up 4.3%, SNDK shares are up nearly 3%, WDC shares are up 3.3%, and STX shares are up over 2.5%.

These continued stock price gains can primarily be attributed to the global memory shortage. 

How will skyrocketing memory prices affect me?

Of course, while investors in the four big memory companies may be quietly cheering on the global memory shortage that is driving their stock prices higher, that shortage is bad for anyone else planning to buy a computer or smartphone this year.

While the memory used in AI data centers and that used in laptops and smartphones are different, many memory makers are diverting production resources away from making the “consumer” type of memory bound for smartphones and laptops to making the higher-end memory that AI giants need (because that type of memory is more profitable).

This, in turn, means less consumer memory is being made that is suitable for personal devices, so the makers of those devices have to pay more to get their hands on whatever they can.

When smartphone and laptop makers pay more for components, they usually don’t just absorb the increased costs; instead, they pass them on to consumers.

If you’ve recently shopped for memory or even SSD hard drives online, you’ll probably have seen that prices are much higher than they were last year. And as 2026 progresses, those higher prices will also translate into higher prices for laptops and smartphones, and the memory shortage worsens. 

Most industry analysts do not expect the memory shortage to get better until sometime in 2027 at the earliest.

What to look for next

When it comes to the global memory shortage and memory chip maker stocks, the next big thing to look for is Micron Technology’s second-quarter fiscal 2026 earnings results, which will take place this Wednesday, March 18.

Analysts will closely dissect the language used by Micron executives to glean insights into how memory demand is changing and whether production capacity is increasing.

After Micron’s earnings on Wednesday, the next event to keep an eye on will happen in early May, which is when Sandisk, Western Digital, and Seagate are expected to announce their next results.

Memory chip stocks are far outperforming the Nasdaq

What’s especially remarkable about Micron, Sandisk, Western Digital, and Seagate’s run lately is that their stock prices have not been significantly impacted by the broader pullback of the Nasdaq on which they trade.

While the four memory companies have seen their stock prices rise by nearly 9% to 25% over the prior five trading days, the Nasdaq Composite has declined 1.6% over the same period, largely due to uncertainties about the war in Iran.

Year-to-date, the gap between the four memory makers and the Nasdaq Composite is even starker.

Since the year began, the Nasdaq Composite is down 4.2%. But in the same timeframe, Micron is up 49%, Western Digital is up 58%, Seagate is up 39%, and Sandisk is up a staggering 178%.