{
 "asof": "2026-08-21",
 "generated_at": "2026-08-21T14:03:19Z",
 "history_days": 159,
 "method_version": 1,
 "note": "HKEX discontinued the northbound buy/sell split in August 2024; northbound is turnover-only since. The narrowing is part of the record — northbound NET flow is never estimated here.",
 "reading": {
  "date": "2026-08-21",
  "nb_sse_turnover_b": 125.847,
  "nb_szse_turnover_b": 142.241,
  "nb_turnover_b": 268.088,
  "sb_buy_b": 46.391,
  "sb_sell_b": 54.021,
  "southbound_net_b": -7.63
 },
 "source": "HKEX Stock Connect daily statistics (keyless official prints)",
 "units": {
  "nb_turnover_b": "CNY bn, total turnover, SSE+SZSE combined",
  "southbound_net_b": "HKD bn, buy minus sell, SSE+SZSE combined"
 }
}