The AI rally has taken many forms, and now the crucial bottleneck appears to be memory. Specifically, the high-bandwidth DRAM and NAND that only a handful of global companies can produce at scale.

Micron Technology has been the poster child of this memory shortage, and it’s justifying its sky-high price targets with impressive earnings figures. MU shares are up more than 800% in the last 12 months, and the company reported year-over-year (YoY) revenue growth of 345% and YoY EPS growth of 1200% in its Q3 2026 earnings released on June 24.

The memory shortage is spilling into other industries as well, with Apple raising laptop prices and Microsoft raising Xbox prices. But Micron, Sandisk, and Western Digital are already well-known to investors.

Here are four memory stocks with promising outlooks that might still be slipping under the radar.

Silicon Motion Technology Corp.

Silicon Motion Technology (NASDAQ:SIMO) has been re-rated from a cyclical memory designer to an integral AI cog facing the largest bottleneck. The company develops silicon NAND flash controllers, which are layered with flash components to manage how data is read and protected. It’s a fabless business model with lower costs that allows the company to retain strong margins and even return capital to shareholders through dividends.

The stock is up more than 250% in 2026, with a market cap north of $10 billion, yet the fundamentals continue to support parabolic gains. The company reported YoY revenue growth of 105% in Q1 2026, with EPS growth of over 160%. The first quarter has typically been the weakest for Silicon Motion, yet the $342 million in sales was an all-time quarterly record.

Price targets have been soaring amongst, including a new Street-high $400 target announced by Wedbush on June 22. The technical picture remains strong, with the price above the 50-day and 200-day moving averages despite an early June swoon. Now, technical tools like the Moving Average Convergence Divergence (MACD) indicator are spiking upward, hinting that the next move in the rally could be about to hit.

Rambus Inc.

Rambus (NASDAQ:RMBS) doesn’t actually manufacture any memory. But its interface chipsets are crucial for data center server modules, and its ‘picks and shovels’ status means it wins no matter which company’s chips are used. It also has an IP licensing model that keeps margins high and allows the company to grow alongside the AI buildout despite having no physical goods in the supply chain.

The stock is “only” up 36% year-to-date (YTD), but earnings growth has been robust, and its financials warrant the hefty valuation (59 times earnings, 18 times sales). The company has beaten revenue projections for 6 straight quarters, and management raised Q2 revenue guidance to $192 million to $198 million during the Q1 2026 conference call on April 27. Management also expects revenue tailwinds to accelerate in the second half of 2026 and into 2027, driven by the release of new products, such as MRDIMM components and SOCAMM2 server chipsets.

RMBS shares are at the technical inflection point that could dictate the direction of the next move. Support at the 50-day moving average has held throughout the stock’s uptrend, but it is being tested once again amid deteriorating signals on other metrics.

The MACD is trending toward negative territory following a bearish crossover, and the Relative Strength Index (RSI) has pushed under the bullish threshold of 50. The downward momentum appears to be weakening, but one of these indicators needs to reverse if the stock wants to hold the 50-day moving average.

Everspin Technologies Inc.

Silicon Motion and Rambus can serve as anchors in a memory portfolio, as the next three selections are more speculative. Everspin Technologies (NASDAQ:MRAM) makes magnetoresistive RAM designed to retain data even in extreme conditions (such as power loss). The company isn’t a direct competitor to the DRAM and NAND producers; instead, its MRAM has more industrial applications in the automotive, aerospace, and defense sectors.

Everspin has a market cap of just $500 million and generated only $55 million in fiscal 2025, but that $55 million represented nearly a 10% YoY increase. Revenue growth continued in Q1 2026, rising 14% YoY to $14.9 million, and the company has visible revenue streams thanks to its 10-year agreement with Microchip.

Everspin reported Q1 2026 earnings on April 29, and the stock soared over 300% to a new all-time high of $44 in the following two weeks. The stock is still up more than 120% YTD, but the parabolic post-earnings move has given back some gains.

However, this could be a good buying opportunity for investors. The stock has found support at the 50-day moving average, a crucial bullish threshold. The MACD has been trending down since the rally turned over, but now the downward momentum appears to be slowing. A MACD trend reversal with support at the 50-day MA would be a good signal that bullish momentum has resumed.

GSI Technology Inc.

GSI Technology (NASDAQ:GSIT) is a supplier of static RAM to customers in the consumer electronics industry, including Nokia. This has been a profitable legacy business model for the company, albeit one beholden to the ebbs and flows of the memory cycle. However, the excitement around the stock stems from its plans to leverage its expertise in an Associative Processing Unit (APU), which aims to combine compute and memory into a single array, eliminating the need to pass data back and forth between memory and the processor.

In theory, this should produce GPU-level performance while using a fraction of the energy. That theory was validated last October in a paper from Cornell University, which sent the stock up by more than 150% in a single session. 

Despite these advances, the APU still isn’t commercially viable, and revenues aren’t expected until 2027 at the earliest. Until then, the company will depend on its legacy SRAM business to fund the APU R&D buildout, and any slowdown in that division could prompt the company to raise capital through equity, diluting existing shareholders. With just a $250 million market cap, GSIT shares are highly volatile – down more than 25% in the last month, but with a 12-month return still above 100%.

However, dip buyers might want more time for the dust to settle. The downtrend has seen the stock price take out the 50-day and 200-day moving averages, and the RSI is firmly bearish, yet has not approached oversold territory. If the 200-day moving average can hold as support (and the RSI reverses trend), a buying opportunity could emerge, but investors should wait for more evidence before purchasing shares.