Today's top market movers — equity gainers, losers, most-active, and crypto gainers/losers by 24h change. Sourced from Yahoo Finance screener and CoinGecko (free, no API key). Returns symbol, name, price, % change, volume, and market cap. Filter by asset class (equities, crypto, or both) and mover type (gainers, losers, active). Use for pre-trade context, on-chain event correlation, and market-regime detection.