THEMES · scores as of

Best stocks by theme.

The idea: Some of the most interesting groups of companies don't map to any sector. Space pure-plays sit in three different industries; cybersecurity hides inside generic infrastructure software. These are hand-picked lists that put them back together.

Why themes exist here

Standard classifications describe what a company is on a filing, not what it's a bet on. Rocket Lab and Iridium are both space businesses, but one is filed under Aerospace & Defense and the other under Telecom Services — no sector view will ever show them side by side. Each theme below is a hand-picked list, chosen by the site's founder and scored on the same quality-growth model as every other stock on the site, and checked on a schedule so acquisitions and delistings don't leave stale names behind.

SpaceSpace is a bet that launches become routine, satellites become part of the technology we use every day, energy systems move into orbit, and exploration keeps pushing outward.Includes SPCX · RKLB · ASTS14 names · top: MDA · 58.2 quality-growthAIAI is a bet on the steady march of automation and artificial intelligence. The industry is full of big promises, and every one of them runs on these foundational companies.Includes NVDA · MSFT · GOOGL19 names · top: NVDA · 86.5 quality-growthCybersecurityCybersecurity is a bet that every advance in technology brings new threats, and with them a growing need for protection.Includes CRWD · PANW · ZS13 names · top: GEN · 82.2 quality-growthClean EnergyA bet on the global march toward a cleaner, greener world, with nearly every industry now working to shrink its carbon footprint.Includes TSLA · NEE · GEV10 names · top: FSLR · 71.1 quality-growthQuantum ComputingQuantum computing is a bet on an entire reinvention of computing, and of the way we think about technology.Includes IONQ · RGTI · QBTS9 names · top: NVDA · 86.5 quality-growthRobotics & AutomationRobotics is a bet on AI stepping into the physical world, in robots that do real, useful work.Includes TSLA · NVDA · ISRG13 names · top: NVDA · 86.5 quality-growthHousing & HomebuildersHousing is a bet on rates coming down and the average American finally being able to afford a home.Includes DHI · LEN · PHM19 names · top: TREX · 61.9 quality-growthNuclear & UraniumNuclear and uranium are a bet on nuclear power becoming more accessible, and on it meeting more of our largest energy needs.Includes CCJ · LEU · SMR10 names · top: GEV · 69.4 quality-growthData CentersCompute is the new oil, and data centers are the infrastructure at the center of it all.Includes NVDA · VRT · SMCI13 names · top: NVDA · 86.5 quality-growthElectric Vehicles & BatteryEV makers, battery chemistry and the component suppliers selling into them. A capital-hungry field where several constituents are pre-profit, which the quality-growth score treats harshly by design.Includes TSLA · NIO · XPEV10 names · top: ALB · 44.2 quality-growthDefense & DronesPrime contractors, defence electronics and the smaller drone and autonomy specialists — grouped by customer (government procurement budgets) rather than by product line.Includes PLTR · LMT · RTX14 names · top: PLTR · 79.5 quality-growthWeight-Loss DrugsThe GLP-1 complex — the large-cap manufacturers shipping today, the telehealth channel selling into patients, and the clinical-stage challengers behind them. Spans big pharma, biotech and healthcare services, so the scores span very different risk profiles.Includes LLY · NVO · HIMS7 names · top: LLY · 77.3 quality-growthInfrastructure & ReshoringEngineering, construction and electrical-contracting firms building factories, grid and transport capacity, plus the equipment makers and aggregates and steel suppliers feeding them — the companies paid to move supply chains onshore.Includes CAT · EME · ACM16 names · top: STRL · 75.4 quality-growthWaterWater utilities, treatment technology, pumps, pipes and metering — an infrastructure-replacement thesis split across Utilities, Machinery and Building Products.Includes AWK · WTRG · XYL15 names · top: BMI · 71.0 quality-growthSemiconductorsThe chipmakers and the equipment companies that build the fabs — designers, foundries, memory, analog and the lithography and etch toolmakers behind them. One of the most-searched groups in the market, and one no broad sector page isolates.Includes NVDA · AMD · INTC24 names · top: NVDA · 86.5 quality-growthGold & Precious MetalsGold and silver miners plus the royalty and streaming companies that finance them — a group people reach for when they want exposure to the metal rather than to the broader market. Earnings swing with the commodity, which the quality-growth score reflects.Includes NEM · AEM · WPM20 names · top: GFI · 72.6 quality-growthCloud & SaaSSubscription software and the hyperscale platforms it runs on — recurring revenue, high gross margins, and the heavy up-front spend that makes the accounting look worse than the business. Spread across several software industries and one megacap.Includes MSFT · CRM · ORCL19 names · top: ADBE · 85.4 quality-growthBiotech & Gene EditingCommercial biotechs earning real money alongside clinical-stage names whose value rests entirely on a pipeline. The score gap between the two is wide and deliberate — a pre-revenue company is graded on what it has, not on what it might become.Includes VRTX · REGN · MRNA16 names · top: NBIX · 87.2 quality-growthAirlines & TravelCarriers, cruise lines, hotels and the booking platforms that sell them — one demand cycle running through four very different business models, from capital-heavy fleets to asset-light marketplaces.Includes DAL · UAL · AAL16 names · top: BKNG · 68.4 quality-growthStreaming & EntertainmentStreaming platforms, studios, live events and video games — the businesses competing for the same hours of attention, filed under Entertainment, Internet Content and Electronic Gaming so no single industry view collects them.Includes NFLX · DIS · SPOT12 names · top: NFLX · 81.2 quality-growthE-commerceOnline marketplaces and the merchant infrastructure beneath them — storefront platforms, cross-border logistics and the delivery networks that close the loop. Yahoo scatters these across Internet Retail, Software - Application and Specialty Retail; the shared driver is the shift of commerce online, not the filing category.Includes AMZN · SHOP · MELI15 names · top: SE · 77.9 quality-growthPharmaLarge-cap drug developers with marketed portfolios and the cash flow to fund the next one — distinct from the pre-revenue end of biotech, where the bet is a trial readout rather than a franchise. Patent cliffs and pipeline depth drive these names more than the economic cycle does.Includes LLY · JNJ · ABBV18 names · top: LLY · 77.3 quality-growthSports Betting & GamingOnline sportsbooks, casino operators and the data and technology suppliers they rent their odds and feeds from. A regulatory story as much as a consumer one: each newly legalised state is a step-change in addressable market rather than incremental growth.Includes DKNG · FLUT · MGM13 names · top: LVS · 73.5 quality-growthDigital HealthTelehealth, digital-first care and the software running clinical trials, prescribing and imaging. Filed under Health Information Services, Healthcare Plans and Diagnostics — united by delivering or administering care through software rather than a building.Includes HIMS · VEEV · DOCS11 names · top: OSCR · 87.6 quality-growthRetailBig-box, discount and specialty chains that still sell mostly through stores — scale buyers whose edge is purchasing power, inventory turns and real estate. The counterweight to the e-commerce tag, and a direct read on how the consumer is actually spending.Includes WMT · COST · HD18 names · top: FIVE · 83.0 quality-growthRestaurantsQuick-service and casual-dining chains, from the global franchisors down to the single-format growth stories. Unusually comparable as a group — same-store sales, unit growth and franchise mix mean the same thing at all of them — which makes ranking them against each other genuinely informative.Includes MCD · SBUX · CMG15 names · top: YUMC · 77.1 quality-growthAgriculture & FoodThe food chain end to end — the fertilizer, seed and machinery that go into the ground, the growers and processors in the middle, and the packaged brands that reach the shelf. Yahoo splits these across six industries (Agricultural Inputs, Farm Products, Packaged Foods, Confectioners, Food Distribution and Farm Machinery), so no single industry view shows the chain that connects them.Includes DE · ADM · MDLZ20 names · top: CF · 70.3 quality-growthLuxury & Premium BrandsCompanies whose economics rest on brand pricing power rather than scale or cost — the ones that can raise prices without losing the customer. They file as Luxury Goods, Apparel Manufacturing, Footwear, Personal Products and even Auto Manufacturers, because the taxonomy sorts by what a company makes and the shared driver here is what it can charge.Includes RACE · LULU · DECK13 names · top: DECK · 81.9 quality-growth

Common questions

What is a theme, and how is it different from a sector?

A sector is where a company is formally classified — Aerospace & Defense, Software, Telecom. A theme cuts across those. Space pure-plays, for example, report under three different industries, so no standard classification groups them. Themes are our own lists, with the companies in each hand-picked by the site's founder.

How are theme constituents chosen?

By hand. Bartholomew Chupka Jr., the site's founder, picks each theme's companies from the stocks in our US coverage. The lists are also checked on a schedule so that acquisitions, delistings and ticker changes don't leave stale members behind.

How are the rankings calculated?

Each member is scored on the same quality-growth model used everywhere on the site — one 0–100 score blending quality, growth, and valuation — and ranked highest first. The universe is re-scored every trading day after the US close.

Not investment advice. The Bull Rankings publishes a quantitative ranking model and accompanying analysis for general informational purposes only. Nothing on this page is a recommendation to buy, sell, or hold any security; nothing is personalized to your circumstances, risk tolerance, or tax situation. Investing carries the risk of loss — invest at your own risk and consider consulting a licensed financial professional before acting on anything you read here. See terms and methodology for full disclosures.