How to Read Stock Market Heatmaps for Sector Rotation株式市場ヒートマップの読み方：セクターローテーション分析

What is a Market Heatmap?

A heatmap is a visual representation of an entire market on a single screen. Each stock is represented by a rectangle, sized by market capitalization and colored by a performance metric. At a glance, you can see:

• Which sectors are strong (green/cyan) or weak (red)
• Which individual stocks are leading or lagging
• How market leadership is rotating between sectors
• The overall market breadth (lots of green = broad strength)

AlpharvestPro’s Custom Heatmaps

Our heatmaps use a squarified treemap algorithm with two unique features:

Color: Daily Price Change

Each stock’s color intensity reflects its daily percentage change:

• Bright teal (+5% or more): Strong momentum day
• Teal (+3% to +5%): Solid gains
• Dark green (+1% to +3%): Modest positive
• Muted green (+0.5% to +1%): Slight positive
• Gray (±0.5%): Flat / neutral
• Dark red (−0.5% to −1%): Slight weakness
• Red (−1% to −3%): Declining
• Deep red (−3% to −5%): Significant weakness
• Bright red (below −5%): Sharp sell-off

RS Rating and Minervini Score are shown in hover tooltips for deeper analysis.

Size: Market Capitalization

Larger rectangles = larger companies. This gives you an instant sense of whether large-caps or small-caps are leading the market.

Grouping: GICS Sectors

Stocks are grouped by sector (Technology, Healthcare, Financials, etc.), so you can instantly see sector-level patterns.

Available Heatmaps

Heatmaps are generated daily after market close and archived with dates.

Stage Rotation Maps: a Longer-Horizon Companion

A heatmap answers a short-horizon question: which sectors and large companies are leading or lagging in the current session? A Stage Rotation Map adds longer-horizon context. It compares each major index, sector, or theme by the direction of its long-term trend and its position relative to that trend, then draws an eight-week trail.

The four stage names follow the framework in Stan Weinstein’s Secrets for Profiting in Bull and Bear Markets:

• Stage 1 — Basing
• Stage 2 — Advancing
• Stage 3 — Topping
• Stage 4 — Declining

Read the trail direction and the map’s as-of date alongside the current quadrant. The display is descriptive research context, not a forecast, recommendation, or trading signal. AlpharvestPro publishes 60 major-index, sector, and thematic series across the four-market map set; a separate US ETF report compares 17 thematic ETF groups. The classifier’s internal calibration remains private.

• US and Japan heatmaps + Stage Rotation Maps
• Taiwan and Hong Kong heatmaps + Stage Rotation Maps
• Four-market map hub
• What is a Stage Rotation Map?

Reading Sector Rotation

Sector rotation is the movement of capital from one sector to another as economic conditions change. Heatmaps make this visible:

Pattern 1: Sector Warming

When a previously gray/red sector starts showing green/teal stocks, money is flowing in. This is early-stage rotation — the sector is gaining daily momentum. Check the hover tooltips for improving RS Ratings.

Research follow-up: Compare the sector with its recent history, then use the tooltip and linked chart to examine whether leadership is broad or concentrated.

Pattern 2: Sector Cooling

When a previously green/teal sector starts fading to gray or red, money is flowing out. The sector has been a leader but is losing momentum.

Research follow-up: Compare the change with the Stage Rotation Map and breadth dashboard to see whether the weakness is isolated or market-wide.

Pattern 3: Broad Green

When most sectors show green/teal, the overall market is having a strong day. Market breadth is strong. This is the best environment for momentum strategies.

Research follow-up: Note whether multiple sectors participate and compare that observation with the aggregate breadth dashboard.

Pattern 4: Broad Red

When most sectors show red, the market is selling off. Few stocks are working regardless of quality.

Research follow-up: Check whether weakness is broad, then compare individual setups with the market-level context before drawing a conclusion.

Practical Heatmap Analysis Workflow

1. Daily check (30 seconds): Open the heatmap for your market. Is it mostly green, mostly red, or mixed?
2. Sector scan (1 minute): Which sectors have the most green/teal? Which are fading?
3. Leader identification (2 minutes): Hover over the brightest green stocks to check RS Rating and Minervini Score in the tooltip. Click to open the chart. These are potential watchlist candidates.
4. Cross-reference (2 minutes): Check if these stocks also appear in the Minervini Candidates or VCP Patterns reports.

Total daily analysis time: under 5 minutes for a comprehensive market overview.

Heatmap vs. Sentiment Dashboard

Both tools measure market health, but they serve different purposes:

Use the Sentiment Dashboard first (is the market healthy?), then the Heatmap (which specific stocks are leading?).

Related Live Tools

• JPX-400 and S&P 500 sector heatmaps — embedded daily on the .com homepage.
• TW200 and HSLMI sector heatmaps — Taiwan and Hong Kong views on .win.
• Sentiment Dashboard — composite breadth score that complements the heatmap reading.
• Industry Group Top/Bottom 30 — drill-down view of which IBD/TSE groups are leading rotation.