Multibagger Selection: Claude Sonnet 5.5's picks
Claude Sonnet 5.5 picked AEHR, LUNR, SOUN, NNE, NVTS with a twelve-month thesis, measured against SPY at each checkpoint.
| Experiment | Multibagger Selection |
|---|---|
| Model | Claude Sonnet 5.5 |
| Prompt version | multibagger-selection-v1 |
| Asked | |
| Horizon | 12-month |
| Benchmark | SPY |
| Status | Being measured |
The picks
| Rank | Symbol | Return | Confidence | vs benchmark | Called right |
|---|---|---|---|---|---|
| 1 | AEHR | — | 60% | — | — |
| 2 | LUNR | — | 50% | — | — |
| 3 | SOUN | — | 52% | — | — |
| 4 | NNE | — | 40% | — | — |
| 5 | NVTS | — | 38% | — | — |
Checkpoints
| Checkpoint | Portfolio return | Return vs SPY | Best peak multiple | Picks reaching 2x |
|---|---|---|---|---|
| 1 week | +0.13% | +0.66% | 1.13x | 0 |
The model's market view
Small caps led in 2026 (Russell 2000 +13.7% YTD to 9/30/26, Russell Microcap +18.3%, per Royce), but dispersion is extreme and several AI- and space-linked small caps have fallen sharply in October. AEHR is about 40% below its October high, and LUNR and NNE are well below their 2026 highs. The Fed decision on October 28 and the December 11 Russell reconstitution are macro dates to watch. Multibagger candidates here are mostly pre-profit or early-profit names with demanding valuations, so dilution and sentiment risk dominate. Several prices and market caps below are a few days to weeks old, and where sources disagreed the figures are marked as derived or unconfirmed.
Why each pick
AEHR
Semiconductor burn-in and test equipment maker whose fiscal 2027 guidance (revenue $130M-$150M, roughly 160%-200% growth) rests on record bookings and an effective backlog of about $100.6M, supported by AI processor, silicon photonics and silicon carbide customers. Fiscal 2027 non-GAAP net income is guided at 18%-22% of revenue. The stock fell from an October high of about $109.48 to about $60-65, and the cause is data unconfirmed. Reference price is a delayed intraday quote from 2026-10-19. Market cap is derived from price times roughly 33M shares; sources vary between about $2.1B and $2.3B.
LUNR
Space infrastructure company that closed the Lanteris (former Maxar Space Systems) acquisition on 2026-01-13, taking backlog from $213M at year-end 2025 to $1.76B at 2026-06-30. Full-year 2026 revenue is guided to $900M-$1B with positive adjusted EBITDA. Reference price is the last dated close I could verify (2026-10-09, $13.19). A monthly price-history source shows $10.68 for October to date (undated), implying a further decline and a market cap nearer $2.4B. Share counts differ across sources (about 160M-229M), so the market cap figure is approximate.
SOUN
Voice and agentic AI company with revenue growing 45% year over year in Q2 2026, GAAP gross margin up 6.1 points to 45.1%, a narrowing adjusted EBITDA loss, $203M of cash and no debt. The stock is far below its late-2025 levels (roughly $6-7 versus $17.62 in October 2025), leaving a lower starting valuation than a year ago. Reference price is the 2026-10-06 close; another source shows about $6.57 (undated). Market cap is derived from price times about 446M shares and sources show $2.5B-$3.0B.
NNE
Pre-revenue microreactor developer whose KRONOS MMR construction permit application at the University of Illinois was accepted by the NRC in May 2026. The NRC has published review milestones that fall inside the 12-month window. The stock is about 75% below its 52-week high of $60.87, so a 3x would still be below that high, but the company has no revenue and no earnings, so this is a milestone and sentiment thesis, not a fundamental inflection. Reference price is the 2026-10-09 close.
NVTS
GaN and SiC power semiconductor company pivoting to high-power markets, including AI data center power built around the Nvidia 800V HVDC architecture. Revenue is small but turning: Q2 2026 revenue rose 22% sequentially to $10.5M and Q3 guidance is $13.5M plus or minus $0.5M, which would return the company to year-over-year growth. Valuation is very high, so I treat a 3x as extreme and include it as a high-risk inflection candidate with a strong cash position. Reference price and market cap are from 2026-10-08.
Other models on the same run
| Model | Picks |
|---|---|
| Perplexity | ONDS, RCAT, AEVA, SOUN, RGTI |
| Gemini 3.6 Flash High | ONDS, RCAT, AEVA, SOUN, RGTI |
| Muse Spark 1.1 | LUNR, ACHR, SOUN, SMR, FLNC |
| Grok 4.7 | CAPR, INOD, NUVB, FEIM, PAYS |
| GPT-6 | FLNC, BKSY, AMPX, INOD, ENVX |
| DeepSeek | AQST, CAPR, VNDA, CGEM, MLYS |
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