Closelooknet rankings · Up & Down Beta
Stocks that rise more with the market than they fall
The stocks with the biggest positive gap between their up-day beta and their down-day beta — names that participate in rallies more than they suffer in sell-offs, as measured over the last 126 trading days.
Every stock moves with the market — but not symmetrically. We measure two betas: one for the market’s up days, one for its down days. This list shows the stocks our engine marks as healthy leaders: high participation on up days, a positive gap between up-beta and down-beta, and beta-adjusted performance that is not deteriorating.
Engine run of 2026-10-02 · 3616 stocks measured against the S&P 500 · top 50 shown — the Market Structure lab holds the full toolbox behind this ranking.
| # | Stock | Beta gap | Up-beta | Down-beta | Instability | State | Market |
|---|---|---|---|---|---|---|---|
| 1 | ARQQ Arqit Quantum Inc. | +8.34 | 6.82 | -1.51 | 66 | healthy leader | US |
| 2 | FORM FormFactor Inc | +4.36 | 6.42 | 2.06 | 65 | healthy leader | Testing & Metrology |
| 3 | AEHR Aehr Test Systems | +4.30 | 6.75 | 2.45 | 51 | healthy leader | Testing & Metrology |
| 4 | ASTS Ast Spacemobile Inc | +3.14 | 4.71 | 1.56 | 48 | healthy leader | Space & Satellite |
| 5 | TRE.MC Tecnicas Reunidas | +3.13 | 3.23 | 0.10 | 62 | healthy leader | Spain |
| 6 | TER Teradyne Inc | +3.04 | 4.57 | 1.53 | 55 | healthy leader | Testing & Metrology |
| 7 | DOCN DigitalOcean Holdings Inc | +2.87 | 3.14 | 0.27 | 66 | healthy leader | Runtime & API Gateways |
| 8 | OKLO Oklo Inc. | +2.84 | 5.27 | 2.43 | 17 | healthy leader | US |
| 9 | RKLB.US Rocket Lab USA Inc. | +2.73 | 5.41 | 2.69 | 46 | healthy leader | |
| 10 | ALAB Astera Labs, Inc. | +2.68 | 6.21 | 3.53 | 43 | healthy leader | High-Speed Interconnects |
| 11 | ENR.XETRA Siemens Energy AG | +2.66 | 3.74 | 1.07 | 12 | healthy leader | |
| 12 | VICR Vicor Corporation | +2.66 | 4.70 | 2.05 | 54 | healthy leader | US |
| 13 | WULF Terawulf Inc | +2.64 | 4.63 | 1.99 | 54 | healthy leader | US |
| 14 | MXL MaxLinear Inc | +2.57 | 6.16 | 3.59 | 80 | healthy leader | US |
| 15 | SOI.PA Soitec SA | +2.55 | 4.78 | 2.23 | 73 | healthy leader | Advanced Materials |
| 16 | FLEX Flex Ltd | +2.51 | 4.77 | 2.26 | 30 | healthy leader | US |
| 17 | CLSK CleanSpark Inc | +2.50 | 4.33 | 1.83 | 54 | healthy leader | US |
| 18 | ATS.VI AT & S Austria Technologie & Systemtechnik Aktiengesellschaft | +2.47 | 6.01 | 3.54 | 64 | healthy leader | Substrates & Interposers |
| 19 | VSAT ViaSat Inc | +2.46 | 4.44 | 1.98 | 82 | healthy leader | Space & Satellite |
| 20 | HOT.DE HOCHTIEF Aktiengesellschaft | +2.41 | 2.43 | 0.02 | 55 | healthy leader | Germany |
| 21 | RIOT Riot Platforms, Inc. | +2.37 | 4.82 | 2.45 | 55 | healthy leader | US |
| 22 | AMRX Amneal Pharmaceuticals, Inc. Class A Common Stock | +2.29 | 1.00 | -1.29 | 66 | healthy leader | US |
| 23 | AMKR Amkor Technology Inc | +2.27 | 4.60 | 2.33 | 52 | healthy leader | Foundry & Integration |
| 24 | ARM Arm Holdings plc American Depositary Shares | +2.25 | 5.31 | 3.06 | 77 | healthy leader | EDA & Chip IP |
| 25 | ESAB ESAB Corp | +2.23 | 2.82 | 0.58 | 60 | healthy leader | United States |
| 26 | HEIJM.AS Koninklijke Heijmans N.V. | +2.23 | 1.92 | -0.31 | 50 | healthy leader | Netherlands |
| 27 | OLLI Ollie's Bargain Outlet Hldg | +2.23 | 1.80 | -0.42 | 78 | healthy leader | United States |
| 28 | GLW Corning Incorporated | +2.23 | 4.35 | 2.13 | 55 | healthy leader | Substrates & Interposers |
| 29 | GBG.L GB Group plc | +2.19 | 1.29 | -0.90 | 59 | healthy leader | UK |
| 30 | GBG.LSE GB Group plc | +2.19 | 1.29 | -0.90 | 59 | healthy leader | UK |
| 31 | LRCX Lam Research Corp | +2.18 | 4.62 | 2.44 | 55 | healthy leader | Deposition, Etch & Process |
| 32 | ACLS Axcelis Technologies Inc | +2.15 | 4.11 | 1.96 | 66 | healthy leader | Fab Subsystems & Process Infra |
| 33 | MDA.TO MDA Ltd | +2.12 | 3.36 | 1.24 | 63 | healthy leader | Space & Satellite |
| 34 | ONTO Onto Innovation Inc | +2.01 | 4.25 | 2.24 | 81 | healthy leader | Testing & Metrology |
| 35 | ENO.MC Elecnor S.A | +1.94 | 1.73 | -0.20 | 32 | healthy leader | Spain |
| 36 | INTC Intel Corporation | +1.85 | 4.67 | 2.82 | 44 | healthy leader | Substrates & Interposers |
| 37 | ASML.AS ASML Holding N.V. | +1.80 | 2.72 | 0.92 | 7 | healthy leader | |
| 38 | BAMNB.AS Koninklijke BAM Groep NV | +1.78 | 1.72 | -0.06 | 35 | healthy leader | Netherlands |
| 39 | KEP Korea Electric Power Corp ADR | +1.77 | 2.87 | 1.10 | 42 | healthy leader | US |
| 40 | MRO.L Melrose Industries PLC | +1.76 | 1.71 | -0.05 | 63 | healthy leader | UK |
| 41 | MRO.LSE Melrose Industries PLC | +1.76 | 1.71 | -0.05 | 63 | healthy leader | United Kingdom |
| 42 | TSEM Tower Semiconductor Ltd | +1.75 | 3.49 | 1.74 | 65 | healthy leader | Foundry & Integration |
| 43 | AMAT Applied Materials Inc | +1.75 | 3.52 | 1.78 | 58 | healthy leader | Deposition, Etch & Process |
| 44 | BE Bloom Energy Corp | +1.75 | 5.49 | 3.75 | 55 | healthy leader | DC Power & Electrical |
| 45 | TTMI TTM Technologies Inc | +1.73 | 3.89 | 2.16 | 62 | healthy leader | US |
| 46 | PANW Palo Alto Networks Inc | +1.73 | 1.73 | 0.01 | 50 | healthy leader | Agentic Security |
| 47 | MKSI MKS Instruments Inc | +1.73 | 3.78 | 2.05 | 64 | healthy leader | Fab Subsystems & Process Infra |
| 48 | SAF.PA Safran SA | +1.69 | 2.43 | 0.74 | 28 | healthy leader | |
| 49 | ASX.AX ASX Ltd | +1.69 | 0.87 | -0.81 | 49 | healthy leader | Australia |
| 50 | EMUDHRA.NS EMUDHRA.NS | +1.66 | 1.77 | 0.11 | 40 | healthy leader | India |
Up-beta / down-beta: how much the stock moves on the market’s up days and down days, over the last 126 trading days. Beta gap = up-beta minus down-beta. Instability = how far the current beta has drifted from its own history (0–100).
Go deeper
- Click any stock for its full page — chart, performance, signals and the Closelooknet read in one place.
- The Market Structure lab shows the same engine as a market-wide dashboard — states, breadth and cross-asset context.
- The Directional Flow ranking grades trend quality; this family grades market relationship. A name strong on both is a different animal than a name strong on one.
- Factor Regime shows which of these profiles the market is currently paying for.
FAQ
What are up-beta and down-beta?
Beta measures how much a stock moves when the market moves. We split it in two: up-beta is measured only on the market’s up days, down-beta only on its down days. A stock with up-beta 1.4 and down-beta 0.8 rises more with rallies than it falls in sell-offs — the two numbers rarely match, and the gap between them is the interesting part.
What does the state column mean?
Our engine sorts every stock into one of five states: healthy leader (strong upside participation, positive beta gap), neutral, fragile (negative gap with elevated downside beta), distribution (fading upside with beta-adjusted underperformance) and decoupling (the relationship with the market itself is breaking down).
How often is this ranking updated?
The engine runs after every US market close across our full coverage, measured against the S&P 500. This page is rebuilt every morning and always shows the date of the run it was built from.
Is this investment advice?
No. Closelooknet publishes an investment research diary, not investment advice. The ranking describes what our engine measures in past prices. Past performance may not be an indication of future performance.
Closelooknet publishes an investment research diary, not investment advice. Past performance may not be an indication of future performance.