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Merge pull request #13 from FinMind/docs/emerging-dealer-zero-price
docs: 註記興櫃自營商分點 price=0 屬正常現象
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knowledge/datasets.md

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@@ -274,6 +274,7 @@ FinMind 會員方案由低到高為 **Free → Backer → Sponsor → Sponsor Pr
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- **Optional:** (無)
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- **Key columns:** securities_trader, price, buy, sell, securities_trader_id, stock_id, date
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- **描述:** 分點進出(單日,按券商分點列出買賣)
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- **興櫃自營商 `price=0`(正常,非缺失):** 興櫃股票(`TaiwanStockInfo` type=`emerging`)的推薦證券商兼造市(自營商,`securities_trader_id` 結尾為 `T`),雙向報價橫跨多個價位、無單一代表成交均價,故該分點列 `price` 顯示為 `0``buy``sell` 股數仍為正確值)。此為興櫃市場結構特性,非資料缺失或錯誤;同一檔興櫃的一般券商分點、以及上市櫃各分點(含自營商)皆有正常成交價。若地端回測會除以 `price`,可過濾 `price>0` 或排除結尾 `T` 的分點列。
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- **Bulk download (Sponsor Pro):** `GET /api/v4/storage_objects?dataset=TaiwanStockTradingDailyReport&date=YYYY-MM-DD` 一次取整日全市場分點 parquet(signed URL,免逐檔查詢);SDK `taiwan_stock_trading_daily_report(date='YYYY-MM-DD', use_object=True)`。此整日下載限 **Sponsor Pro**
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### TaiwanStockWarrantTradingDailyReport

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