atomic-holder-analysis

Run the analyze-holders script with the mint address using npx tsx tools/analyze-holders.ts <mint>. It queries token accounts via RPC and reports holder count, top-N concentration, Gini coefficient, a balance histogram, and the top 10 holder wallets.

The script flags two heuristic signals: balance clustering where 10% or more of holders share near-identical balances, and a suspiciously flat top-10 owning under 15% of supply across 50+ holders. Cross-check flagged wallets with a funding-provenance audit for stronger evidence.

Pump.fun coins shortly after graduation typically sit between 0.7 and 0.85. Values below 0.5 with more than 100 holders suggest Sybil activity or a prior airdrop, while values above 0.95 indicate a single wallet controls nearly all supply.

Public RPC works for mints with under roughly 500 holders. For 500 to 5000 holders a paid RPC like Helius or Triton is needed, and beyond 5000 holders an indexer such as Solana FM or Birdeye is recommended to avoid timeouts.

The snapshot only includes active token accounts with non-zero balances, so closed accounts and historical holders are excluded. It provides no off-chain identity for wallets, no USD weighting, and its Sybil heuristics can be evaded by varying balance sizes.