請問各位知唔知邊度有以前港股每日沽空額記錄

Go to HKEx's website - 統計資料及數據:
http://www.hkex.com.hk/data/securitiesmarket_c.htm

Choose 日報表及週報表

Click on the dates you want (but only within 1-2 months)

Click on 賣空成交-每日報表

Then u can see both the individual stocks and overall short sell amount.