Zero Sum Wheel
Explore Taiwan's market turnover, sector by sector
2 followers
Explore Taiwan's market turnover, sector by sector
2 followers
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.
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.