For informational & educational purposes only. Not financial advice. No guarantee of outcomes. Users are responsible for compliance with local laws. 18+. Read full disclaimer →
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SharkScore™

Whale conviction, expressed as one number.

SharkScore™ is a transparent 0–100 quality score we attach to every whale signal on PolySharks. Six components, every weight published, every input auditable. No black-box ML. No hand-wave. Sort the leaderboard by it, quote it, screenshot it.

Grade bands
ELITE
90 – 100
All six components firing. Cohort, consensus, fresh action, plenty of room.
STRONG
75 – 89
High conviction with one weak component — usually slightly stale recency or timing.
WATCHLIST
60 – 74
Two whales agreeing, decent liquidity, but missing a clean edge or recency catalyst.
WEAK
0 – 59
Below threshold. Surface it for completeness; do not stake meaningful size on it.
Six components · published weights
ComponentWeight
Whale Strength
Average realized PnL of the whales in this signal.
25/100
Whale Consensus
How many top-50 whales are on the same side.
20/100
Price Edge
How much room is left between current price and resolution.
20/100
Liquidity
Total USD stacked by the cohort, log-scaled.
15/100
Recency
How fresh the cohort's last action is.
10/100
Timing
Days until market resolution.
10/100
Total100
Worked example
Hypothetical signal
4 top-50 whales (avg +63% PnL) just opened YES on “Will Fed cut rates in December?” at 38¢ — total stacked $612K.
Whale Strength
17/25
+63% avg, mapped through the curve
Whale Consensus
16/20
4 whales agreeing
Price Edge
17/20
38¢ → 100¢ = 62¢ room, near the max
Liquidity
11/15
$612K log-scaled
Recency
10/10
All four moved within 4 hours
Timing
10/10
~3 weeks to resolution — sweet spot
SharkScore
81
STRONG
Add a fifth whale or shave another point off price-edge and this crosses into ELITE (90+).
Design principles
Six inputs · zero black box
Every component is plain math on public Polymarket data. We publish the formula, not a magic number.
Auditable by anyone
Hover the badge anywhere on the site — you get the same six-line breakdown that we used to compute the score.
Descriptive, not advice
SharkScore measures conviction in the cohort. It does not measure whether they will be right. Prediction-market positions can go to zero.
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Informational analytics only. SharkScore is a descriptive metric, not financial advice. Prediction markets carry real risk of loss.

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Compliance & Disclosures

PolySharks.ai is a market-intelligence and analytics platform operated by 8eight8 LLC. The site is provided for informational and educational purposes only — it is not financial, legal, tax, or gambling advice. Past whale performance and historical data carry no guarantee of future outcomes. Trading prediction markets involves substantial risk of loss, including 100% of principal. Users are solely responsible for compliance with the laws of their local jurisdiction — prediction-market access is restricted or prohibited in some US states and countries; verify legality before depositing or trading on Polymarket or Kalshi. PolySharks does not custody funds and is not affiliated with Polymarket Inc. or Kalshi Inc. 18+ only (21+ in some jurisdictions).