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Zero Sum Wheel

Explore Taiwan's market turnover, sector by sector

See how trading activity is spread across Taiwan's stock market. Explore industries, replay daily snapshots, and compare turnover shares with stock-price changes over 8, 20 or 60 trading days. Free to use, with English and Traditional Chinese. Covers TWD-denominated securities on TWSE and TPEx.

Top comment

Hi Product Hunt, I'm Yu Wang.

I built Zero Sum Wheel to make Taiwan's daily market data easier to explore. Start with the wheel to see how trading activity is split across industries. Pick an 8-, 20- or 60-trading-day window, then open an industry or a stock's price chart to look closer.

The wheel shows each group's share of trading value. The animated links illustrate changes in that share; they aren't a record of money moving from one industry to another.

The site is free, opens in English, and has a Traditional Chinese switch. It covers TWD-denominated securities on Taiwan's TWSE and TPEx markets. The data is updated after the trading day, with the date shown on the page.

There's also a separate fixed-method research panel. It includes dates, sample sizes and negative results so the numbers have context.

I used GPT-6 Astra in Codex to build and test the app. I'd love to hear whether the wheel makes sense on your first visit, and which comparisons you'd find useful.

About Zero Sum Wheel on Product Hunt

Explore Taiwan's market turnover, sector by sector

Zero Sum Wheel was submitted on Product Hunt and earned 0 upvotes and 1 comments, placing #26 on the daily leaderboard. See how trading activity is spread across Taiwan's stock market. Explore industries, replay daily snapshots, and compare turnover shares with stock-price changes over 8, 20 or 60 trading days. Free to use, with English and Traditional Chinese. Covers TWD-denominated securities on TWSE and TPEx.

On the analytics side, Zero Sum Wheel competes within Data Visualization and OpenAI Day — topics that collectively have 3.7k followers on Product Hunt. The dashboard above tracks how Zero Sum Wheel performed against the three products that launched closest to it on the same day.

Who hunted Zero Sum Wheel?

Zero Sum Wheel was hunted by Yu Wang. A “hunter” on Product Hunt is the community member who submits a product to the platform — uploading the images, the link, and tagging the makers behind it. Hunters typically write the first comment explaining why a product is worth attention, and their followers are notified the moment they post. Around 79% of featured launches on Product Hunt are self-hunted by their makers, but a well-known hunter still acts as a signal of quality to the rest of the community. See the full all-time top hunters leaderboard to discover who is shaping the Product Hunt ecosystem.

For a complete overview of Zero Sum Wheel including community comment highlights and product details, visit the product overview.