Polymarket Wallet Activity Answers: "What is this Polymarket trader betting on? Are they profitable?" Finding an active trader address: Source from trades-by-market (guarantees trade history) rather than top-holders (position holders may have no recorded trades):

Step 1: find active traders from a market

nansen research pm trades-by-market --market-id < market_id

--limit 5

→ seller/buyer addresses with confirmed trade history — use one as ADDR below

ADDR

< polymarket_address

nansen research pm trades-by-address --address $ADDR --limit 20

→ timestamp, market_question, event_title, taker_action, side, size, price, usdc_value

nansen research pm pnl-by-address --address $ADDR --limit 20

→ question, event_title, side_held, net_buy_cost_usd, unrealized_value_usd, total_pnl_usd, market_resolved

Note: addresses sourced from top-holders may return empty trade history — use trades-by-market to find addresses with confirmed activity. Look at PnL across resolved vs unresolved markets to gauge trader skill. Large positions in trending categories signal conviction.