Sandisk Plunges Double Digits as AI Chip Trade Gets a Reality Check

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Stock End-of-Day Report

As of Jun 23, 2026, 4:00 PM ET

For informational purposes only.

Summary

Sandisk Sinks 14% as AI Chip Fever Finally Takes a Breather

Sandisk had a rough day: the stock dropped about 14% on slightly heavier-than-normal trading after one of the wildest runs you’ll ever see in a big company. The main story isn’t “Sandisk suddenly turned into a bad business”; it’s that the whole AI chip and memory trade hit an air pocket at the same time a lot of people were sitting on huge gains.

If you own the stock, today is a reminder that this name can move like a roller coaster, both up and down. If you’re just watching from the sidelines, it’s a good example of how even great stories can be very bumpy in the real world.

What actually happened today

Sandisk closed around $1,964, down about 14% from yesterday. The stock traded a bit more than its usual volume, which suggests there was genuine selling pressure, but not a full-on panic.

This wasn’t just a “Sandisk problem” day:

Chip stocks broadly sold off, dragging the Nasdaq lower.
Korea’s KOSPI index plunged roughly 10%, led by memory giants Samsung and SK Hynix, after leveraged bets (lots of borrowed-money trading) went bad.
Traders piled into cheap ways to bet against chip stocks, showing a jump in skepticism toward the whole sector.

Sandisk trades in the same “AI memory” bucket as Samsung, SK Hynix, and Micron. When that group is getting hit, Sandisk usually gets hit too, and that’s what played out.

On top of that, Sandisk has been on an absolutely massive tear: up around 700% this year and thousands of percent since the spin-off. Some chart watchers have literally called it the “most overbought stock ever” and have been telling people to lock in profits. Today looks a lot like that profit-taking finally showing up.

Did the business itself get worse?

There’s no new bad company-specific news today. In fact, the most recent headlines have been extremely positive:

Last quarter, revenue nearly doubled versus the prior quarter and margins were unusually high.
Sandisk signed multiyear deals that already lock in a big chunk of its 2027 production, with billions of dollars in contractual guarantees.

Sandisk fell about 14% today on slightly above-average volume, as a global shakeout in AI chip and memory stocks and heavy profit-taking hit a name that had soared roughly 700% this year. The drop lines up with a broader tech and semiconductor sell-off sparked by turmoil in Korean chip leaders and rising bearish bets on the sector, rather than any new bad news about Sandisk’s own business.

Recent results and contracts still look very strong, but the market is clearly rethinking how much it wants to pay for the AI memory story after such a huge run. For you, this day is a reminder that Sandisk is a high-quality yet high-volatility play on AI storage: the long-term story may be intact, but your comfort level needs to match the reality of double-digit down days, not just the upside fireworks.

Commentators point out that Sandisk is throwing off a lot of free cash (real cash left over after expenses and investments), and some funds that focus on cash-rich businesses have made it a top holding.

The real debate is valuation, not survival. With a market value already around the hundreds of billions, some argue there’s a path to half a trillion or even a trillion if AI storage demand stays strong; others say the market got ahead of itself and could easily reset much lower. Today’s drop fits that “how much is this worth?” tug-of-war, not a collapse in fundamentals.

So what does this mean for you?

In plain terms, Sandisk is still a high-quality but high-drama stock. It benefits from the AI and cloud boom, but it is also extremely sensitive to mood swings in that theme. Its recent gains mean there are a lot of fast-money holders who may rush for the exit when volatility spikes.

Things that would make the setup look better:

The chip sector stabilizes and we stop seeing big, across-the-board selloffs.
Upcoming memory earnings (like Micron’s) confirm that AI-related demand and pricing are holding up.
Sandisk’s price calms down and starts to trade in a narrower range instead of giant daily swings.

Things that would make it look worse:

More large drops on heavy volume, especially if tied to signs that AI spending is being cut or delayed.
News that cloud customers are walking back orders or that NAND prices are falling hard.

Regardless of your stance, the key takeaway from today is not “game over,” but “this is what real risk feels like when you’re tied to a hot theme.”