Listing
Events
A new asset trading pair became available (appeared in the Binance USDT-pair snapshot). Backfilled listings are reconstructed from the first daily candle and are survivorship-biased (they describe only surviving pairs).
Calculation
Snapshot diff of binance_symbol_snapshots (gap-guard: >1 day between snapshots emits no event). payload {symbol, prev_snapshot_date}.
Unit & source
event · tradingstrategies.work Asset-Event-Layer (deterministic, look-ahead-free event stream) methodology
Related terms
Definitions are for research and education. Metrics describe market conditions — not financial advice or a buy/sell signal.