Metrics Documentation
Understanding AudioAlpha's sentiment analysis
AudioAlpha analyzes finance and crypto podcast discourse to generate actionable sentiment metrics. This guide explains each metric, its scale, and how it's visualized in our charts.
Circle Diagram Metrics
The concentric ring chart displays 6 key metrics. Each ring fills from 0-100% based on the metric's normalized value. The center shows the primary α-sentiment score.
α-sentiment
The primary market sentiment score derived from podcast discourse analysis. Measures overall bullish or bearish sentiment expressed by finance and crypto podcast hosts and guests.
Sentiment Z-Score
How the current sentiment compares to historical norms. A z-score of +2 means sentiment is 2 standard deviations above average - unusually bullish. Negative values indicate below-average sentiment.
1-Day Delta (Δ1d)
Change in sentiment over the past calendar day (UTC). Positive values indicate improving sentiment, negative values indicate declining sentiment.
7-Day Delta (Δ7d)
Change in sentiment over the past 7 calendar days. Shows the weekly trend direction and magnitude.
Consensus Score
Measures agreement among podcast hosts. High consensus (80%+) means most voices agree on direction. Low consensus indicates mixed or conflicting opinions.
Episode Volume Score
Sigmoid-normalized z-score of episode count by day of week. Shows whether there's unusually high or low podcast activity compared to typical patterns for that weekday.
Spider Chart Metrics
The spider (radar) chart shows 5 dimensions for each asset. All metrics are normalized to 0-1 scale. The filled area represents the asset's overall profile - larger area generally indicates stronger signals.
α-sentiment (Spider)
Asset-specific sentiment score on the spider chart. Normalized to 0-1 scale for visualization alongside other metrics.
Consensus
How much podcast hosts agree on their assessment of this specific asset. High consensus strengthens the signal reliability.
Z-score
Normalized sentiment deviation from the mean. Shows how far the current sentiment is from typical levels, scaled to 0-1.
Narrative Intensity
The strength and conviction of narratives being expressed about the asset. High intensity suggests strong opinions and active debate. AudioAlpa proprietary formula.
Daily Market Metrics
These metrics are available in the daily snapshot data (daily_snapshot table) and can be exported via the dashboard. They provide market-wide statistical context and are calculated across all episodes for each day. See also Circle Diagram Metrics above for visualization-specific metrics.
α-Sentiment Median
The median sentiment score across all episodes for the day. Less affected by outliers than the mean.
α-Sentiment Std Dev
Standard deviation of episode sentiments. Higher values indicate more disagreement/variance in opinions.
α-Sentiment Variance
Variance of episode sentiments. The squared standard deviation, measuring spread of sentiment values.
α-Sentiment OHLC
Open, High, Low, Close sentiment values for the day - similar to price candlesticks. Open = first episode, Close = last episode.
Sentiment Skewness
Measures asymmetry in the distribution. Positive skew = tail toward bullish outliers. Negative skew = tail toward bearish outliers.
Sentiment Kurtosis
Measures 'tailedness' of distribution. High kurtosis = more outliers/extreme opinions. Low kurtosis = opinions clustered around mean.
Episode Count
Total number of podcast episodes analyzed for that day.
Sentiment Strength Index
Measures the conviction/strength of the overall market sentiment signal. Combines sentiment deviation from neutral with sample size confidence.
Sentiment Strength Index Raw
Measures the conviction/strength of the overall market sentiment signal. With stronger sensitivity to rarely mentioned assets and centered around 0 for modeling/alpha research.
Market Regime
Concise market regime label.
Asset-Level Metrics
These metrics are available in the daily asset snapshot data (daily_asset_snapshot table) and can be exported for your favorite assets. Each metric is calculated per-asset per-day, allowing you to track individual asset sentiment over time. See also Spider Chart Metrics above for visualization-specific metrics.
Composite Scores
α-Index measures narrative strength (how robust and reliable the signal is), while α-Pulse measures narrative momentum (how rapidly sentiment is changing).
α-Index
Composite narrative strength score combining sentiment level, historical sentiment deviation (z-score), host consensus, and coverage reach. Requires 2+ episode mentions to produce a meaningful score. Higher values indicate stronger, more reliable narrative signals.
α-Pulse
Composite narrative momentum score measuring how rapidly an asset's podcast narrative is accelerating. Combines sentiment z-score, 1-day sentiment delta, attention share, and surprise score. Dampened for assets with low episode counts to reduce noise.
Episode Count (Asset)
Number of episodes mentioning this specific asset on the given day.
Days Since Last Mention
Number of days since this asset was last mentioned in a podcast.
α-Sentiment Mean (Asset)
Average sentiment score for this specific asset across all mentions.
α-Sentiment Median (Asset)
Median sentiment score for this asset. Less affected by outliers.
α-Sentiment Std Dev (Asset)
Standard deviation of sentiment for this asset.
α-Sentiment Variance (Asset)
Variance of sentiment scores for this asset.
α-Sentiment OHLC (Asset)
Open, High, Low, Close sentiment for this asset on the given day.
1-Day Delta (Asset)
Change in this asset's sentiment compared to yesterday.
7-Day Delta (Asset)
Change in this asset's sentiment compared to 7 days ago.
Bull Ratio
Proportion of mentions with bullish sentiment for this asset.
Bear Ratio
Proportion of mentions with bearish sentiment for this asset.
Neutral Ratio
Proportion of mentions with neutral sentiment for this asset.
Consensus Score (Asset)
How much hosts agree on their assessment of this specific asset. Higher values indicate stronger agreement.
Surprise Score
How unexpected or surprising the current attention is compared to historical patterns. Combines recency of mentions with attention deviation.
α-Sentiment Momentum
Combines sentiment change direction with conviction (consensus) and discussion volume. Positive values indicate bullish momentum, negative values bearish.
Narrative Intensity
The strength and conviction of narratives being expressed about the asset. Combines attention share, polarization (bull vs bear divergence), and discussion volume.
Narrative Intensity (Normalized)
Normalized version of narrative intensity for cross-asset comparison. Uses the 95th percentile of all assets on that day as the reference point.
Color Coding
Sentiment Color Scale
Spider Chart Scoring
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