Legendary AI Supply Chain Detective Serenity: The Ultimate Guide to Her Investment Strategy

Known globally for her unconventional research into the AI semiconductor supply chain and niche small-cap stocks, she is called the 'AI Supply Chain Detective' and the 'White-Haired Female Stock God' in Chinese circles. This article comprehensively organizes her track record, holdings, stock selection logic, and investment methodology.

1. Who is Serenity?

A month ago, Serenity had only 50,000 Twitter followers; now, she is approaching 400,000.

Her bio describes her as an AI/Semi-supply chain analyst, formerly a member of the RISC-V Foundation and an AI research scientist.

This person is incredibly mysterious, with no external data available. However, she is very active in replying to comments. I have pulled all her replies and filtered out the personal information she revealed, but the most important part remains her investment methodology.

1.1 Personal Information

Real Name/Age/Nationality: Completely unknown, never disclosed.

Gender: Male (the female references in this article are based on the avatar style).

Technical Background:

• Former AI research scientist, published in Nature.
• Former RISC-V Foundation member.
• Holds multiple active semiconductor patents.
• In 2018, when NVIDIA's stock was around $6, he was invited to lead an AI team but declined, claiming he "felt he could make more money trading stocks."

Life Traces:

• Currently in Japan (learning Japanese).
• Lived in China briefly, frequently visits Taiwan (knows some Chinese).
• Played soccer in Mexico (knows some Spanish).
• Plays LoL on the Korean server (only remembers the insults).
• Originally planned to study AI in Edinburgh, UK, but went solo.
• Visited Singapore 15 times, Canada countless times, 28+ countries in total.
• Location hint: Rosewood Menlo Park (a high-end Silicon Valley hotel, suggesting frequent stays in the Bay Area).

2. Serenity's Past

2.1 Fame with AXTI

Before becoming @aleabitoreddit, he had an earlier identity: Reddit user AleaBito.

Back then, he was active in r/wallstreetbets, the craziest gathering place for US retail investors. That sub saw GameStop and AMC, but the stock AleaBito posted about led the moderators to take direct action.

That stock was AXTI. At the time, AXTI was trading at about $12 with a market cap slightly over $200 million. Its business sounded niche: Indium Phosphide (InP) substrates. When someone wrote a long-form post about an InP substrate company, the first reaction was: this person is pumping a stock to dump on retail. The moderators quickly banned the account.

But Serenity's understanding of AXTI was on a completely different level.

He described AXTI as a company that "basically covers the entire photonics supply chain." In his judgment, AXTI's most critical position in the AI industry lay in InP substrate manufacturing. InP substrates are a foundational material for high-speed optical communication and photonic devices. The greater the demand for optical interconnects in AI data centers, the more sensitive the position of such material companies becomes.

Serenity's judgment at the time was aggressive. He believed AXTI's stock should either hold its current level or, like a mini version of $SNDK, continue upward once the market understood its position. He even believed that if AXTI could reprice its monopoly position, it had the potential to become a company with a market cap exceeding $10 billion.

Criticism came quickly, with many comparing AXTI to Samsung's foundry or Lumentum's InP fab, arguing it wasn't special. Serenity fired back, saying most people had no idea what they were talking about—Samsung's foundry and $LITE's InP fab are in completely different parts of the supply chain.

This was the key background to his ban. He was talking about the foundational material layer of the AI photonics supply chain, while the forum only saw a niche small-cap stock. AXTI's daily volatility could reach 15% to 25%, which WSB moderators viewed as inherently risky. The more Serenity insisted on holding and emphasized its supply chain status, the more he was seen as a pumper.

Ultimately, the AleaBito account was banned. Looking back years later, this ban became the most dramatic moment in Serenity's story: he was trying to explain an AI photonics supply chain while the market only saw a small stock. He was kicked out as noise, but AXTI eventually hit $70, turning that controversy into his most cited success.

2.2 AI Supply Chain Detective

The story then moved to Twitter. When he first arrived on X, Serenity's influence was far from what it is now. A few months ago, he had just passed 50,000 followers. Those following him were mainly traders interested in AI, semiconductors, optical communications, and small-cap stocks.

His writing was not suitable for quick reading by average retail investors: InP substrates, CPO external light sources, SOI wafers, wafer-level test equipment, T-Glass specialty glass fibers, fiber arrays, microlenses—these terms don't spread as naturally as NVIDIA, Microsoft, or AMD.

But it was this niche content that allowed Serenity to build his brand on X, pushing him to become the 'chosen one' of the AI supply chain. While most were discussing GPUs and NVIDIA orders, he was tracking optical interconnects, lasers, silicon photonics, and co-packaged optics.

Later, the nicknames given to him by the outside world all came from this period: "Bottleneck Hunter," "Supply Chain Detective," "10x Master," and "God of Revelation."

3. Stock Holdings and Logic

3.1 SIVE is one of Serenity's favorite small caps

Sivers Semiconductors is a Swedish company that Serenity views as a player in next-generation CPO external light sources. They make Continuous Wave (CW) laser sources related to 1.6T co-packaged optics. In his judgment, CPO demand will surge in 2027-2028, and $SIVE's current market cap of ~$290 million is significantly undervalued.

He suggests a competitor like $AVGO or $MRVL could simply acquire Sivers for its short-to-medium-term photonics roadmap for around $290 million or less.

Serenity even used Gemini to run simulations, which supported his judgment. He mapped the acquisition chain as: $SIVE → Win → $POET → Celestial → $MRVL.

His financial expectations for Sivers are bold: losing $50 million this year, but potentially hitting $500 million in revenue next year. By 2028, he expects revenue could reach $500 million, and $1 billion by 2029. He calls this a massive Total Addressable Market (TAM).

To outsiders, this seems insane—imagining a heavily loss-making company's performance taking flight in two years. It's no wonder people are skeptical, but this "madman" stubbornly bought a 1% stake in $SIVE.

He admits the stock will have high short-term volatility but believes in its potential. When accused of pumping, he points to his track record with $AXTI. As an avid LoL player, he is known for firing back at critics.

3.2 $AAOI in the Transceiver Space

Serenity's understanding of AAOI is direct: lasers, design, assembly, and sales of transceivers—it covers almost the entire supply chain. He also mentioned AAOI is working on ELSFP (External Laser Source Form Factor) products, linking it to the CPO narrative.

He placed AAOI on his list of fastest-growing companies and predicted its optical transceiver revenue would scale 10x by the second half of 2027. He publicly stated he bought a significant amount of AAOI around $84. At a $6.6 billion market cap, he felt it wasn't expensive, especially with $500 million in new capital.

His attitude toward short reports (like those from Herb Greenberg) is dismissive. His stance: if you haven't experienced the 15-25% daily drops of AXTI, you're likely new to these types of stocks.

3.3 The Heavyweight: $MRVL

In his view, NVIDIA's $2 billion investment serves as an endorsement for the CPO optical architecture roadmap of Marvell and Celestial AI. He believes Marvell only needs to spend about $30 million to take a 10-20% stake in $SIVE to lock in a key upstream supplier for its $1 billion CPO project.

He is excited about the NVIDIA-Marvell connection, seeing NVIDIA as accelerating the CPO architecture and pulling major players into a unified standard. In this light, Marvell isn't just a traditional semiconductor company but a core participant in NVIDIA's optical interconnect route.

Earlier Bet: Raspberry Pi ($RPI)

Back in February, he proposed an interesting trade: long Raspberry Pi. The reason differed from traditional semi-analysis: Openclaw, Picoclaw, Nanobot, and the resulting hoarding demand. While AI demand was surging, the impact on a trillion-dollar company like Apple is negligible, but for the much smaller Raspberry Pi, the operational leverage and stock reaction are far more pronounced.

Analysts were stunned, viewing it as a retail meme like GME. But Serenity grew tired of the noise and waited for earnings to validate him. On March 31, Raspberry Pi rose 44.76% in one day, followed by 27.43% the next. Analysts then raised 2026 revenue forecasts to $511 million. Serenity had predicted 55% growth when analysts expected 14%; actual growth hit 58%.

3.4 AEHR

Serenity views AEHR through the lens of the photonics supply chain. It handles the testing phase and has already secured new certification orders from a leading optical transceiver company. He sees AEHR as an early-stage AAOI, entering the supply chain of large hyperscale data centers for silicon photonics testing.

3.5 COHR and LITE

These two sit in the larger photonics ecosystem. Serenity sees them as beneficiaries of NVIDIA's $2 billion optical investment. COHR is attempting vertical integration into InP substrates, overlapping with AXTI in certain bottleneck positions. LITE is similarly critical for HCF (Hollow Core Fiber) and photonic products. The clearer NVIDIA's optical investment becomes, the higher the probability these companies will be rerated.

Summary

Serenity later compiled a complete CPO industry map:

• Scale CPO ASIC: $AVGO, $MRVL
• Transceivers: $COHR, $LITE, Innolight
• DSP/PAM4: $AVGO, $MRVL
• Coherent DCI: $CIEN, $NOK
• OCS Equipment: iPronics, Polatis
• Cables/Fiber: GLW, Prysmian, Furukawa
• HCF: $LITE, OFS
• Light Sources/ELS: $SIVE, $AAOI, POET, Celestial AI

This explains how he achieved a 500% return in 5 months this year: he has thoroughly researched the entire AI supply chain.

He accurately captured institutional rotation: from the end of the memory stock rally ($SNDK, Samsung, SK Hynix, $MU) to photonics ($AAOI, $AXTI, $LITE, $COHR), and now heavily into SiPh and ELS.

4. Influence Affecting Price

A new variable has emerged: Serenity's followers now influence prices. With nearly 400,000 followers, his impact is massive. When he identifies a niche small-cap with thin liquidity and his followers pour in, the price is driven up, creating a feedback loop of beautiful account screenshots and more followers.

At this stage, it's hard to separate his returns: part comes from judgment, part from his massive reach. This isn't an accusation of market manipulation, but a realization that he has become part of the market. A person cited by Reuters and Bloomberg who specializes in illiquid small caps cannot speak publicly without moving the needle.

Ordinary people often make two mistakes here. First, dismissing him as a pump-and-dump account—this is too crude, as he has a complete supply chain framework. Second, thinking his success is easily replicable. It requires reading packaging processes, communication optics papers, and semiconductor material yields—skills most retail investors lack.

5. Future Predictions

Serenity sees three main trends:

1. CPO Acceleration: 2027-2028 will see a shift from pluggable devices to co-packaged optics, amplifying demand for external light sources ($SIVE, $AAOI, $POET).
2. Institutional Rotation: Moving from HBM/Memory to transceivers, and next to external light sources and Silicon Photonics (SiPh).
3. M&A: Giants like Broadcom and Marvell may acquire key upstream suppliers like Sivers to lock in supply before CPO volumes explode.

Additionally, he believes if China continues to restrict Gallium and Indium, the US will accelerate domestic material investment, benefiting AXTI. He also remains bullish on $NBIS and Raspberry Pi's uncounted hoarding demand. Even if the $SPY drops 20%, he believes $AAOI and certain photonics stocks will be more resilient than mega-caps.