We provide one-click live quotes, online backtests, visual DCA backtests, and portfolio review tools. No account needed; everything runs in the browser so you can stay focused on long-term investing.

Product Highlights

  • Online review: no login or installation required; open and backtest instantly.
  • Two major markets: US stocks, China A-shares, funds, and ETFs.
  • Less fluff, more tools: use it instantly from the first screen.
  • Security & privacy: no registration; your inputs stay on your side.
  • Compounding calculator: quick estimates when you need them.

Privacy & Disclaimer

DingTou App provides market data, historical data, and calculations for reference only and may be delayed, incomplete, or inaccurate. Please rely on official disclosures from exchanges, issuers, or fund managers. This site does not provide investment advice or solicitations. Investing involves risk; past performance does not guarantee future results. By using this site you acknowledge and accept these risks. See our Privacy Policy.

Data & Calculation Limits

  • Market data may come from major exchanges and public sources; delays or revisions can occur.
  • Backtests may not include dividends, slippage, taxes, or liquidity constraints.
  • If you spot anomalies, email us and we will review and correct.

Contact Us

  • Email：dingtou.app@gmail.com
  • Issues & improvements: report anomalies, missing data, or product suggestions via email.
  • Collaboration: share case studies, insights, or propose co‑development.