Concept Sectors

Query the market data service concept sector data with three modes: mode='daily' — single-day index performance (open/high/low/close, change%, turnover);mode='period' — multi-period returns (5/10/20/30/60-day change% and turnover);mode='popularity' — concept popularity/heat metrics (browse, search, watchlist heat).Sorted by change_pct desc (daily), change_pct_5d desc (period),or total_heat_10k desc (popularity).codes is optional; omit to return all concept sectors.