Whale tracking, arbitrage research, and prediction-market analysis.
A step-by-step walkthrough for following the top 50 Polymarket whales: what makes a wallet a whale, how to read their positions, conviction signals vs. noise, and how PolySharks automates the workflow.
Cross-platform arbitrage between Polymarket and Kalshi gets talked about a lot and captured rarely. Here is why the spreads exist, how to compute real edge after fees/slippage, and why most retail arb attempts fail.
Individual whale bets can be noisy. Consensus bets — where multiple top-50 whales hold the same side of the same market — are a different signal entirely. Here is how we compute it, its real track record, and the biases you should know about.
Every term you need to read prediction markets like a pro — from AMM and orderbook to conviction, consensus, CLOB tokens, redeemable positions, and the Jaccard similarity score we use for cross-platform matching.
Polymarket used to run on Uniswap-style AMMs. Today it is a fully on-chain orderbook (CLOB). Here is what that means for spreads, slippage, and why whales can move prices 5¢ in a second on thin markets.
A head-to-head 2026 comparison of Kalshi and Polymarket across regulation, liquidity, fees, market selection, payouts, and user experience. Plus the one factor most comparison posts miss: cross-platform arbitrage.
Whales are not oracles. We broke down every losing whale position > $25K on Polymarket in the last 6 months — and four patterns show up again and again. Read this before you tail.
Also check: Methodology · Live Track Record · Glossary
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).