Sentiment
A recency-weighted average of coverage tone over 5 days (weights: 7,5,4,3,2). Scored from -1 (strongly bearish) to +1 (strongly bullish). Today's reading counts 3.5x more than a 4-day-old reading.
Why it matters Sentiment tells you the overall mood of market coverage. But tone can be misleading — articles can sound positive even when the arguments are bearish. That's why we pair it with Balance and Tension.
Narrative Balance
The ratio of bullish to bearish theme coverage, from -100% (all bearish) to +100% (all bullish). Unlike sentiment, which measures language tone, balance measures what the arguments actually say.
Why it matters Balance answers a different question than sentiment: "What are people arguing?" vs "How do articles sound?" A market with positive sentiment but negative balance is one where optimistic language masks bearish arguments.
Coverage Tension
The divergence between sentiment (tone) and narrative balance (arguments). Ranges from 0 (aligned) to 1+ (strongly divergent).
Why it matters High tension means articles sound one way but argue another. These moments of internal contradiction often precede shifts in market conversation.
Volume Share
What fraction of total article coverage a theme represents over a 3-day window, weighted by recency (today = 7x, 2 days ago = 4x).
Why it matters Volume share shows where the conversation's attention is concentrated. Rising share means a theme is gaining mindshare, regardless of direction.
Momentum
The shift in a theme's coverage share over the trailing 3 days versus the prior 3 days, measured in share points (pp) — the last 3 days' share minus the previous 3 days'. A theme that grew from 0 to 8% of an asset's coverage reads +8pp. Measured in share (not raw counts) to normalize for daily pipeline volume, and by absolute points so a theme capturing 80% of coverage outranks a tiny blip.
Why it matters Momentum tells you which themes are gaining or losing attention, and by how much. High share + flat momentum = saturated. Low share + positive momentum = emerging.