How often does Tide update its data?

Data updates by approximately 18:30 each trading day with institutional net buying/selling figures, followed by a 19:00 post-market summary push. Source: Taiwan Stock Exchange and OTC public data.

What do bubble chart positions mean?

X-axis represents 5-day net buying (right = net buy, left = net sell), Y-axis shows momentum (top = accelerating, bottom = decelerating), and bubble size reflects 20-day total volume.

What's the difference between free and Pro versions?

Free version includes bubble chart, rankings, watchlists, and post-market push. Pro unlocks advanced features, accessible via friend referrals or subscription.

Can I track abnormal trading in individual stocks?

Yes. Add stocks to your monitoring list, and the system will send consolidated push notifications when abnormal large trades or consecutive institutional buying/selling occurs.

Tide 潮汐

Tide visualizes Taiwan stock market institutional trading data through bubble charts and rankings, helping investors quickly understand capital movements across sectors and individual stocks.

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Summary

Tide is a Taiwan stock fund flow visualization tool that aggregates daily institutional trading data, presenting sector rotation and stock-level capital changes through bubble charts and rankings to help investors track institutional movements.

What is Tide?

Tide automatically calculates institutional net buying/selling over 5-day and 20-day periods from Taiwan Stock Exchange and OTC public data, visualizing 110 sectors and individual stocks in bubble charts. Top-right indicates accelerating inflows (rising tide); bottom-left shows outflows (ebbing tide). The platform offers post-market push notifications, watchlist tracking, abnormal trading alerts, and 30-day playback, letting you grasp daily capital highlights in 30 seconds.

Core Capabilities

Sector bubble chart: Visualizes fund flows across 110 sectors, X-axis shows 5-day net buying, Y-axis shows momentum acceleration or deceleration
Stock-level tracking: Watchlists and abnormal large buy/sell signals, consolidated in post-market push notifications
Capital rotation playback: Dynamic replay of sector and stock fund movements over the past 20 trading days
Daily post-market push: Auto-sends top institutional buyers, sellers, and abnormal signals at 19:00
Market sentiment poll: Anonymous bullish/bearish voting with site-wide accuracy leaderboard

Pros

30-second insights: Bubble chart reveals fund flows at a glance, no manual calculation needed
Real-time alerts: Proactive notifications when watchlist stocks show abnormal trading or consecutive institutional buying/selling
Full historical playback: 20-day capital trajectory animation to observe sector rotation patterns
Free core features: Bubble chart, rankings, post-market push, and watchlist tracking all free
Mobile-first design: Portrait-optimized interface, supports home screen installation for quick access

Positioning & best fit

Tide is built for Taiwan stock investors who need fast institutional flow insights, transforming public trading data into readable visual charts and saving manual analysis time. Ideal for:

Short-term swing traders: Track sector rotation and capital hotspots to time entries and exits
Institutional flow researchers: Observe consecutive buying/selling and abnormal signals to validate investment theses
Busy professionals: Daily 19:00 push delivers key highlights in 30 seconds
Technical analysts: Combine institutional flow with technical analysis to improve win rates and confidence