OPTO Folios
ETFs reimagined - without the fees
OPTO Folios launched on August 4, 2025 with 20 votes, #648 of 8,530 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 1 year on.
What it does
Build your own stock index with OPTO Folios. Copy a top performing user folio like Tech Titans or Cyber 25, tweak it or make your own from scratch. Adjust weights, swap stocks, and auto-rebalance—no fees**. optothemes.com/disclosures
Opto delivers daily stock market news and analysis, for the discerning investor. Identify the next big idea with Opto’s business updates & financial research.
--> --> Date Edition INTERNATIONAL UK AU Themes Climate change Carbon transition Clean energy Clean tech Rare earths Sustainable foods Water Wind Solar Disruptive technology 5G AR/VR Cloud computing Cyber security Disruptive innovation Electric vehicles Gaming Healthcare innovation Internet of things Lithium Robotics Saas Semiconductors Social media Space Demographic & social change Biotechnology Cannabis Genome editing Health wellness Immunology Medical devices Work from home Next generation economy Blockchain China tech Fintech Mobile payments Authors Benzinga Cartica Collaborative Fund Direxion ETF-TV Frank Holmes Global X Hedgeye Jesse Felder Joe Kunkle Julius de Kempenaer LTSE Michael…from cmcmarkets.com
Does a similar job
all alternatives →

- DDDouble – Design and invest in your own stock index2024 · ▲178
Hey everyone, we’re JJ and Mark from Double (https://double.finance). Over the past few months we’ve been working on an investing app that lets anyone design and invest in their own stock index. Start by picking one or more strategies. You can find 20+ starting points in Double that vary from direct index versions of classic ETFs (like SPY) to strategies focused on specific industries, market trends, or themes (like YC public companies). You can also easily build your own grouping of stocks, and tilt your strategy towards or away from certain stocks or sectors. Once you’ve chosen…

Stocks Porfolio in a URL and FaviconJun 2026 · stocksreader.com · ▲14Track your stock portfolio with just a URL. No accounts, no signup. Add your tickers and shares to the link and go.
Source: Product Hunt launch ↗
Launched alongside, August 2025
the whole month →

I built the world's most impractical 1000-pixel display and anyone in the world can draw on it. It draws a single pixel at a time and takes 30-60 minutes to complete a single image. Anyone can participate in the project by voting for the next image to be drawn, and submitting images. https://kilopx.com/
Work · 2025 · benholmen.com


Kitten TTS is an open-source series of tiny and expressive text-to-speech models for on-device applications. We are excited to launch a preview of our smallest model, which is less than 25 MB. This model has 15M parameters. This release supports English text-to-speech applications in eight voices: four male and four female. The model is quantized to int8 + fp16, and it uses onnx for runtime. The model is designed to run literally anywhere eg. raspberry pi, low-end smartphones, wearables, browsers etc. No GPU required! We're releasing this to give early users a sense of the latency and voices…
AI · 2025 · github.com

I was wondering how I can arrange objects along a spherical helix path, and read some articles on it. I ended up learning about parametric equations again, and make this visualization to document what I learned: https://visualrambling.space/moving-objects-in-3d/ feel free to visit and let me know what you think!
Life & fun · 2025 · visualrambling.space

For HTML Day 2025 [1], I made a web service that displays the current sky at your approximate location as a CSS gradient. Colours are simulated on-demand using atmospheric absorption and scattering coefficients. Updates every minute, without the use of client-side JavaScript. Source code and additional information is available on GitHub: https://github.com/dnlzro/horizon [1] https://html.energy/html-day/2025/index.html
Dev tools · 2025 · sky.dlazaro.ca