What Is YMTC (Yangtze Memory Technologies)? How to Buy and Short It on MEXC

Key Takeaways

• YMTC is a Chinese memory manufacturer in Wuhan that makes 3D NAND flash, the storage inside phones, SSDs and data-center drives.
• Its shares are not listed yet, and will sit in a market most foreign investors cannot reach.
• YMTCUSDT on MEXC is a USDT-settled perpetual futures contract tracking a reference price for the stock, tradable long or short.
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What YMTC Actually Does

Yangtze Memory Technologies was established in Wuhan in July 2016 and does one thing: 3D NAND flash memory. Not DRAM. The distinction matters, because China's other memory champion, ChangXin Memory Technologies, makes DRAM, and the two names get swapped constantly in coverage. NAND is the storage that keeps data when the power is off, which puts it in phone handsets, consumer SSDs and the drive racks underneath data centers. DRAM is the working memory a processor reads from while it runs. Different product, different customers, different cycle.

The company's technical signature is Xtacking, an architecture it introduced at the Flash Memory Summit in 2018. Conventional 3D NAND builds the memory array and the logic that drives it on one wafer, a compromise, since the process steps that suit one are wrong for the other. YMTC separates them. The array is fabricated on one wafer, the CMOS periphery on a second, and the two are bonded face to face through billions of vertical interconnects inside a die about the size of a fingernail.

The stated payoff is higher interface speed and bit density. The less obvious one is modularity: the logic wafer can sit on a mature process node while the array wafer scales layer count separately. That decoupling became useful later, when the toolset available to YMTC narrowed and it still needed a way to add density.

Its own milestone record runs from a first-generation 3D NAND chip in 2017 to Gen 5 TLC parts in mass production in 2024 and a Gen 5 QLC chip in 2025. Those chips reach the market three ways: raw wafers and packaged dies to module makers, embedded memory and enterprise SSDs to device and server builders, and consumer SSDs under its own ZHITAI brand.

Ownership is where the company gets unusual. YMTC was founded under Tsinghua Unigroup, and after that group's restructuring, control passed to state capital. The national integrated-circuit investment fund and Hubei and Wuhan provincial vehicles hold the large majority between them, and the company reports no single controlling shareholder. The entity taking the Shanghai listing is the holding company above YMTC, which is the operating business generating almost all of the group's revenue. Manufacturing sits in two Wuhan fabs, with more capacity under construction.

Why Traders Are Watching YMTC

The most interesting fact about YMTC is a mismatch between two rankings. Counterpoint Research put its share of global NAND bit shipments at roughly 14% in the second quarter of 2026, third behind Samsung and SK hynix, and the first time the company had entered the top three by volume. By revenue it ranked fifth in the same quarter.

That gap is the thesis, in both directions. YMTC ships enormous bit volume into consumer products, where prices per bit are low, and has not won a proportionate share of the enterprise SSD business AI data-center buyers pay up for. Close the gap and margins expand on a volume base that already exists. Fail to close it and the company stays a commodity supplier, priced like one.

The second reason is the memory cycle. YMTC's reported results swing hard with NAND contract pricing: revenue of roughly RMB 63 billion and net profit near RMB 14 billion for 2025, followed by a first quarter of 2026 that produced more profit on its own than the whole of the year before it. Results shaped that violently by pricing run the same way in reverse when contract prices turn. Capacity is the other half of it: the company is funding a fab build-out on the strength of peak-cycle profits, which is how memory expansions have usually been financed and how they have usually gone wrong.

Third is access, the practical one. Mainland shares on the Shanghai STAR Market are effectively closed to foreign retail investors, and a memory-sector ETF dilutes a single-name view into something else. When ChangXin Memory listed in Shanghai in July 2026 and closed its first session several hundred percent above its offer price, offshore traders watched with no instrument to express a view.

Fourth, policy is a live input rather than background color. YMTC has been on the US Commerce Department's Entity List since December 2022, which restricts its access to American equipment and technology and pushed it toward domestic tool suppliers. In February 2026 the Pentagon removed it from a separate defense-related list while the Entity List designation stayed. Movement on that file has repriced the story before.

What Changes After Listing

Before a company trades publicly, a reference price is an estimate of what buyers think the shares are worth. Once the stock lists, that estimate is replaced by an actual print, and the contract tracks a number set by A-share order flow.

Two consequences follow. The STAR Market keeps limited sessions and closes on Chinese public holidays, so a contract trading around the clock accumulates moves the underlying has not responded to, and the reopening print can gap. STAR Market shares also carry daily price limits once their opening days are past, so the underlying can be limit-locked while the perpetual keeps trading, widening the basis.

Trading YMTCUSDT on MEXC

YMTCUSDT is a perpetual futures contract on MEXC that tracks a reference price for one YMTC share, settled in USDT. Traders never hold, borrow, or deliver the underlying shares.

The contract trades around the clock, which is the practical reason to use it rather than the cash market: YMTC's equity sits in a Chinese venue that foreign retail investors generally cannot access, before or after listing.

For current contract specifications — leverage, margin mode and trading rules — see the YMTCUSDT contract page.

How to Buy YMTCUSDT (Going Long)

Traders who expect YMTC's reference price to rise can open long exposure through the YMTCUSDT perpetual futures contract. Six steps:

• 1. Fund your futures account. Transfer USDT from your spot wallet to your USDT-M futures account.
• 2. Open the YMTCUSDT contract page. Search the ticker, or browse the futures market list.
• 3. Set your margin mode and leverage. The available options are shown on the contract page.
• 4. Choose your order type. A limit order sets your entry price and waits; a market order fills immediately at whatever the book offers.
• 5. Enter your position size. Read the sizing note below before settling on a number.
• 6. Click Open Long. Then set a take-profit and stop-loss on the open position.

Step 5 deserves more thought than the entry price. Leverage cuts both ways: the higher the multiple, the smaller the adverse move needed to wipe out the margin backing your position.

For fuller instructions on opening and managing a position, read MEXC's stock futures trading guide.

How to Short YMTCUSDT

Traders who expect the reference price to fall can take short exposure through the same contract. This does not involve borrowing or selling the underlying shares. The trader opens a short position in a derivative linked to YMTC's reference price.

• 1. Fund your futures account. Transfer USDT from your spot wallet to your USDT-M futures account.
• 2. Open the YMTCUSDT contract page. Search the ticker, or browse the futures market list.
• 3. Set your margin mode and leverage. The available options are shown on the contract page.
• 4. Choose your order type. Limit to name your entry price, market to fill immediately.
• 5. Enter your position size. The same sizing logic applies in reverse.
• 6. Click Open Short. Then set a take-profit and stop-loss.

Two things behave differently on the short side. Funding payments flow between longs and shorts depending on whether the contract trades above or below its reference price, so an open short can earn or pay funding over time. And losses on a short have no natural ceiling, because there is no upper bound on how far a price can rise.

One risk is specific to this name. A pre-listing reference price moves on valuation reports and policy headlines rather than on disclosed results, so it can reprice sharply with no earnings calendar to anchor the timing.

Risks to Understand First

• Liquidity. MEXC designates part of the day as a low-liquidity period: slippage can widen, index prices can pause, take-profit and stop-loss orders may not fill, and maximum leverage on some pairs can be lowered for new orders.
• Price uncertainty. A reference price for an unlisted company reflects estimates rather than a traded print, and estimates move.
• Gap risk. Sharp moves and price gaps can follow a quiet period or an underlying market closure.
• Contract terms can change. Specifications and trading rules are set on the contract page and can be adjusted.
• Regional availability. Access to this product varies by jurisdiction.
• Concentrated policy exposure. This is a name where one regulatory decision — an export-control change, a licensing ruling, a listing-review outcome — can matter more than a quarter of operating performance, and those decisions arrive without warning.

FAQ

How do I buy YMTC on MEXC?

Fund a USDT-M futures account, open the YMTCUSDT contract page, set margin and leverage, size the order, then click Open Long.

How do I short YMTC on MEXC?

Use the same contract and the same first five steps, then click Open Short. No share borrowing is involved.

Does trading YMTCUSDT give me actual YMTC shares?

No. It is a USDT-settled derivative tracking a reference price — no ownership, no dividends, no voting rights.

Can I trade YMTCUSDT when the underlying market is closed?

Yes, it runs around the clock. Part of that time is a designated low-liquidity period, when slippage widens and orders may not fill.

Where do I check the contract specifications?

On the YMTCUSDT contract page, which shows current leverage, margin options and trading rules.

What does YMTC make?

3D NAND flash memory: wafers and packaged chips for module makers, embedded memory and enterprise SSDs for device and server builders, and consumer SSDs under ZHITAI.

Is YMTC the same company as CXMT?

No. Both are Chinese memory makers heading for Shanghai listings, but YMTC makes NAND flash storage and ChangXin Memory Technologies makes DRAM. Separate companies, separate products.

Can I buy YMTC shares directly?

Most investors outside mainland China cannot. The planned venue is the Shanghai STAR Market, which is largely closed to foreign retail participation.

Why is YMTC on the US Entity List?

The Commerce Department added it in December 2022 over its role in the domestic semiconductor supply chain. The designation requires licenses for exports of American technology.

Risk Warning

Stock futures products carry substantial risk, including leverage, forced liquidation, funding costs, limited liquidity, wide spreads, and price gaps when the underlying market is closed. Availability varies by jurisdiction. This article is for informational purposes only and does not constitute investment advice.