北交所资金流向

获取北交所股票日度资金流向的单类大小明细数据，包含小/中/大/超大四种单类的流入、流出、净流入等。采用固定标准划分，按照单笔成交股数与单笔成交金额交叉判定。单笔成交金额≤4万且成交股数≤2万股时为小单，单笔成交金额大于4万或成交股数大于2万股，且小于等于20万和10万股时为中单，单笔成交金额大于20万或成交股数大于10万股，且小于等于100万和50万股为大单，单笔成交金额大于100万或成交股数大于50万股为超大单。

This dataset provides detailed order size-specific daily capital flow data for stocks listed on the Beijing Stock Exchange, including inflow, outflow, net inflow and other metrics for four order tiers: small, medium, large and extra-large. The classification adopts a fixed standard, which is cross-validated by both the per-trade transaction amount and the number of shares traded per transaction. Specifically, a trade is categorized as a small order when both the transaction amount is ≤ 40,000 yuan and the number of traded shares is ≤ 20,000; a medium order when the transaction amount exceeds 40,000 yuan or the number of traded shares exceeds 20,000, while the transaction amount is ≤ 200,000 yuan and the number of traded shares is ≤ 100,000; a large order when the transaction amount exceeds 200,000 yuan or the number of traded shares exceeds 100,000, while the transaction amount is ≤ 1,000,000 yuan and the number of traded shares is ≤ 500,000; and an extra-large order when the transaction amount exceeds 1,000,000 yuan or the number of traded shares exceeds 500,000.