w3yh://essays/stocks-for-dummies
Stocks for Dummies
An English explainer series. One ticker per entry, six fixed sections, and a hard line between what is provable from sources and what is just narrative circulating on X. Educational content, not financial advice.
New entries appear without a fixed schedule — each one carries its date and source status. Latest entry: 3 August 2026.
30 entries
Sources separated from narrative
Allianz SE
Xetra / Frankfurt (Prime Standard) · Insurance / Asset Management
Allianz collects insurance premiums, invests the backing assets, pays claims and benefits, and earns additional fees by managing roughly EUR2 trillion of third-party assets through PIMCO and Allianz Global Investors.
Novo Nordisk A/S
NYSE ADR / Nasdaq Copenhagen B share · Diabetes / Obesity Pharma
Novo Nordisk develops and manufactures medicines for diabetes, obesity and rare diseases, earning most of its economics from patented treatments such as Ozempic and Wegovy while spending heavily on trials and manufacturing capacity to defend that franchise.
Oscar Health, Inc.
NYSE · Health Insurance / Digital Health
Oscar sells ACA individual health-insurance plans, collects premiums from members and mostly from federal subsidies, pays medical claims, and uses its technology, broker and enrollment platforms to acquire and serve members.
Aduro Clean Technologies Inc.
Nasdaq · Chemical Recycling / Clean Technology
Aduro is a pre-commercial clean-technology developer trying to turn hard-to-recycle plastics and other low-value hydrocarbon feedstocks into usable liquids with a water-assisted chemical process, then monetize the technology through licenses, royalties and partner projects.
Kraken Robotics Inc.
OTCQB · Marine Robotics / Defense
Kraken Robotics sells sonar, navigation, imaging, subsea batteries, robotic systems and survey services used by defence, offshore-energy and ocean-science customers to see, position, power and monitor equipment underwater.
Zeta Global Holdings Corp.
NYSE · Marketing Technology / AI
Zeta sells software and data-driven marketing services that help large companies identify consumers, automate campaigns and deliver messages across email, web, mobile, social, connected TV and other channels.
Zevra Therapeutics, Inc.
NasdaqGS · Rare-Disease Biotech
Zevra sells two approved rare-disease medicines in the United States and is developing celiprolol for vascular Ehlers-Danlos syndrome, with most current commercial value concentrated in MIPLYFFA for Niemann-Pick disease type C.
Ondas Inc.
Nasdaq · Defense Autonomy / Counter-UAS & ISR
Ondas buys and operates defense and autonomy companies that build counter-drone systems, aerial and ground robots, ISR platforms and mission software, while its legacy private-wireless business is now an unconsolidated affiliate.
Hims & Hers Health, Inc.
NYSE · Consumer Health / Telehealth & Pharmacy
Hims & Hers acquires consumers online, connects them with licensed providers, and fulfills prescribed or wellness products through pharmacies and partners, earning mostly self-pay revenue from recurring treatments across U.S. and international brands.
Cipher Digital Inc.
Nasdaq · Digital Infrastructure / HPC & Bitcoin Mining
Cipher secures land and power, builds large data centers, and has signed long-term leases for high-performance-computing capacity that is still being delivered, while its remaining mining operation uses infrastructure to earn bitcoin.
Delcath Systems, Inc.
Nasdaq · Oncology / Drug-Device Combination
Delcath sells a drug-and-device kit that temporarily isolates the liver's venous outflow, infuses high-dose melphalan into the hepatic artery, filters the exiting blood outside the body, and then returns it to circulation.
AbCellera Biologics Inc.
Nasdaq · Biotech / Antibody Discovery Platform
AbCellera runs an antibody-discovery engine, it uses its platform to find and optimize therapeutic antibodies, earning milestones and royalties from drug-developer partners while building its own programs.
Absci Corp
Nasdaq · Biotech / AI Drug Discovery
Absci uses generative AI plus lab automation to design therapeutic antibodies from scratch, aiming to create drug candidates faster than traditional discovery and to partner them out or advance its own.
WhiteFiber, Inc.
Nasdaq · AI Infrastructure / Neocloud (HPC data centers + GPU cloud)
WhiteFiber builds and operates high-performance-computing data centers and rents GPU cloud compute, selling the infrastructure that AI training and inference run on rather than AI models themselves.
Sivers Semiconductors AB
Nasdaq Stockholm · Semiconductors — mmWave Wireless + Photonics
Sivers Semiconductors designs specialized chips in two areas — millimetre-wave wireless for 5G/6G and compound-semiconductor lasers (photonics) for optical communication and sensing — selling components to systems makers rather than finished devices.
LPKF Laser & Electronics SE
Xetra / Frankfurt (Prime Standard) · Laser systems / Advanced semiconductor packaging (glass structuring)
LPKF builds laser-based systems for industry, and its LIDE process structures glass with high precision — a capability the semiconductor industry is eyeing for next-generation glass-core substrates used in advanced chip packaging.
FUELCELL ENERGY INC
Nasdaq · Data Center Power
FuelCell Energy makes stationary fuel cell systems that generate electricity through a chemical reaction rather than burning fuel.
MICRON TECHNOLOGY INC
Nasdaq · Memory & Semiconductors
Micron sells memory and storage products, including DRAM and NAND.
Sandisk Corp
Nasdaq · Memory & Semiconductors
Sandisk sells products to computer manufacturers, OEMs, cloud service providers, resellers, distributors and retailers worldwide.
AST SpaceMobile, Inc.
Nasdaq · Satellite & Space
AST SpaceMobile is building satellites that act like cell towers in space, so an ordinary smartphone can connect directly to them where there is no ground coverage.
Applied Optoelectronics, Inc.
Nasdaq · Photonics & Optical
Applied Optoelectronics makes the optical transceivers and laser components that turn data into light to move it through data centers, cable-TV networks and telecom links.
Lumentum Holdings Inc.
Nasdaq · Photonics & Optical
Lumentum makes lasers and optical parts that help move data as light inside AI data centers, telecom networks and industrial machines.
COHERENT CORP.
NYSE · Photonics & Optical
Coherent makes optical parts, lasers and transceivers that help AI data centers and communications networks move huge amounts of data as light.
Rocket Lab Corp
Nasdaq · Satellite & Space
Rocket Lab is a space company: it launches satellites into space on its own rockets (its Launch Services segment) and builds spacecraft and satellite components for other operators (its Space Systems segment).
Ouster, Inc.
Nasdaq · Humanoid Robotics
Ouster, Inc. sells lidar sensors and related products and completed the StereoLabs acquisition in early 2026.
Vishay Precision Group, Inc.
NYSE · Humanoid Robotics
Vishay Precision Group, Inc. designs and manufactures precision measurement and sensing technologies including sensors, weighing solutions, and measurement systems.
Penguin Solutions, Inc.
Nasdaq · AI Infrastructure
Penguin Solutions, Inc. develops and sells advanced computing products, integrated memory solutions, and optimized LED products.
Credo Technology Group Holding Ltd
Nasdaq · AI Infrastructure
Credo Technology Group Holding Ltd is a Cayman Islands company whose ordinary shares trade on Nasdaq under the symbol CRDO.
Merlin, Inc.
Nasdaq · Defense
Merlin, Inc. develops autonomous flight technology for defense and commercial applications.
Bloom Energy Corp
NYSE · Data Center Power
Bloom Energy Corporation designs, manufactures, and sells solid oxide fuel cell systems that generate electricity on-site for commercial and industrial customers.
Method cards
Ticker-agnostic mental models
Pick one, download or share

Narrative vs Filings
Separate the story circulating on X from what the company actually filed.
Open card →
Pipeline is not Backlog
An opportunity pipeline is not signed revenue. Conversion is the whole game.
Open card →
Platform vs Single-Asset
One product is one coin-flip. A platform is many shots from the same engine.
Open card →
What a 10-K actually tells you
Four numbers tell you most of the story before the narrative starts.
Open card →