Multi-Year Fear/Greed Heatmap
Daily Fear & Greed Index reformatted into a calendar matrix - one cell per day across multiple calendar years - and colored on a diverging scale from extreme fear (saturated forest green) through neutral (white) to extreme greed (saturated burgundy). Reveals seasonal sentiment regimes at a glance.
What is it?
The Multi-Year Fear/Greed Heatmap reformats the daily Crypto Fear & Greed Index - a public 0-100 sentiment composite available since early 2018 - into a calendar matrix where each cell represents a single calendar day and the cell color encodes the index reading on a diverging scale. Multiple calendar years are stacked vertically so that the full multi-year sentiment landscape is visible at once. The diverging colormap saturates dark green at extreme fear (0-25), pales to white near neutral (50), and saturates dark burgundy at extreme greed (75-100). The chart converts an otherwise monotonic time-series into a spatial picture of crowd sentiment seasonality.
How to read
The chart is a 2D matrix: the horizontal axis is day-of-year (January 1 to December 31) and the vertical axis stacks one row per calendar year. Each cell is colored according to the Fear & Greed Index reading on that specific date. Read the chart by scanning along a single year-row to see how sentiment evolved through that calendar year, or by scanning down a single day-of-year column to see how sentiment differed across multiple cycles on the same calendar date. Persistent dark-green clusters mark periods of sustained fear; persistent dark-burgundy clusters mark periods of sustained greed. Pale neutral cells correspond to balanced sentiment regimes.
Key zones
Four observable color regimes: • Extreme Fear (0-25, saturated forest green): historically aligned with deep cycle accumulation regimes. Persistent multi-month dark-green clusters near cycle troughs have been the highest-conviction long-horizon entry windows. • Fear (25-50, medium green): contraction-to-early-expansion phase. The cells lighten as the cycle transitions out of bear regimes. • Greed (50-75, medium burgundy): mid-to-late expansion phase. The cells deepen as the cycle approaches topping conditions. • Extreme Greed (75-100, saturated burgundy): cycle topping compression. Persistent multi-week dark-burgundy clusters near cycle peaks have been the highest-conviction late-cycle distribution windows. The spatial layout makes regime persistence immediately visible: a dense block of one color indicates a sustained sentiment regime; rapid color cycling indicates high-volatility regime transitions.
What to observe
• Vertical alignment of dark-green cells: the same day-of-year showing dark-green across multiple consecutive cycle years suggests a calendar-effect sentiment trough. Note that calendar effects in crypto are weaker than in equity markets, so reading vertical alignment is exploratory rather than predictive. • Diagonal sweeps: a multi-year diagonal of dark-burgundy cells indicates a sentiment regime that drifts across calendar dates from cycle to cycle, a signature of cyclical (not calendrical) timing. • Cluster shape: a square cluster of fear-colored cells indicates a multi-month sentiment regime confined to one calendar year. A long-and-narrow cluster spans multiple years on a similar calendar date - a hint of seasonality. • Density transitions: the moment when a year-row transitions from one color regime to another marks a cycle inflection. Compare the transition dates across years to read regime synchronization. • White-band scarcity: years dominated by extreme-fear and extreme-greed coloring with little neutral white indicate high-volatility cycle phases. Years dominated by neutral white indicate low-volatility consolidation phases.
Historical context
The Crypto Fear & Greed Index has published daily readings since early 2018, providing multi-year coverage that spans cycle-2 ending, the 2018 bear, the 2019-2020 cycle-3 setup, the 2021 cycle peak, the 2022 trough, and the cycle-4 expansion phases. Across these regimes, the index has reliably saturated at extreme-fear levels near cycle troughs and at extreme-greed levels near cycle peaks. Notable persistent extreme-fear regimes include the 2018 second-half bear, the 2020 March COVID drawdown, the late-2022 trough, and the 2023 stagnation. Notable persistent extreme-greed regimes include the early-2018 peak, the late-2020 to mid-2021 cycle expansion, and the late-2024 cycle topping. The heatmap visualization compresses this multi-year sentiment landscape into a single readable image.
Expert notes
Implementation: the underlying Fear & Greed Index aggregates multiple sentiment sub-components (volatility, momentum, volume, social media activity, search trends, dominance) into a single 0-100 daily reading published by an independent third-party aggregator. The Trinity backend ingests the daily public series and persists each daily value into the central data store; the renderer pivots the 1D time-series into the 2D calendar matrix at display time. Coverage starts approximately February 2018 and updates daily. The diverging colormap is symmetric around the neutral 50 anchor; the saturation gradient is linear within each tail (0-25 and 75-100) and gradually pales toward 50 to make the regime boundaries visually obvious.
Common mistakes to avoid
• Treating extreme-fear cells as automatic buy zones: persistent dark-green clusters mark sentiment-regime troughs statistically, but do not guarantee an imminent price reversal. The cycle can dwell in extreme-fear for many months before resolving upward. • Treating extreme-greed cells as automatic sell zones: persistent dark-burgundy clusters mark sentiment-regime peaks, but the price can sustain extreme-greed readings for extended periods during exceptional regimes. • Reading calendar-effects too aggressively: vertical alignment of cells across multiple cycles at the same calendar date is suggestive but weak. Crypto sentiment seasonality is not as well-anchored as equity-market seasonality. • Conflating sentiment with price direction: a dark-burgundy cluster does not mean the price is rising; it means the sentiment composite is reading as extremely greedy. Sentiment and price can diverge during regime transitions, and that divergence is informational, not contradictory.
Programmatic access
REST API
curl -sS \
'https://api.trinityinsights.io/api/v1/cycle-intelligence/cycle-fng-multi-year-heatmap/history?days=90' \
-H 'X-API-Key: $TRINITY_API_KEY'MCP server
{
"tool": "get_chart_value",
"metric_id": "cycle-fng-multi-year-heatmap",
"timeframe": "1y"
}Required tier: free. See the pricing grid for the tier list and the MCP documentation for multi-client configuration.
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Institutional disclaimer
Trinity Insights is an educational and analytical tool. The metric above does not constitute investment advice. Trinity Insights is not a Crypto-Asset Service Provider (CASP) registered under MiCA Regulation (EU) 2023/1114. See the full disclaimer.