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Short sale Balance of Margin Trading and SBL
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The information provided below is available since 2006/01.

Note:
  1. Starting March 19, 2012, the new formula and the information disclosure rule shall apply to the SBL short sale balance.
  2. SBL short sale Balance ＝ Balance (T-1)＋Sell (T)－Return (T)＋Adjustment (T).
  3. The number of shares in SBL short sale includes the number of shares in block trading.
  4. The amount of Adjustment (T) includes: mutual adjustments of securities trading among (standard positions), (margin positions) and (securities borrowing positions) in the TPEx and out-trade adjustments.
  5. Available volumes for SBL short sale: Starting May 26, 2025, the volume of intraday securities borrowing orders may not exceed 30% of the average daily trading volume over the previous 30 trading days of the securities. For the credit line limit allocation, available volumes for SBL short sale are calculated according to the “total volume control” rule.
  6. Illustration
    • X - suspension of margin trading short sale,
    • Y – ineligible for margin trading,
    • V - suspension of SBL short sell owning to being ineligible for securities borrowing while the securities borrowing balance is zero,
    • % - credit line limit allocation,
    • Z - suspension of SBL short sell owing to reaching the available volumes or new TPEx securities without available volumes
    • ! - suspended trading securities
  7. Starting January 1, 2014, Securities firms and futures proprietary traders conducting the SBL short sell owning to the hedging needs of specific business may be exempt from the available volumes. In such cases, the SBL short sell volumes may exceed available volumes.
  8. Applying to the TWSE’s daily work schedule, the information will be updated at 20:30 and 22:30.
  9. If any newly added Altered Trading Securities are present, a "Query" option will appear above. Click it to view the securities list. Additionally, historical data can be shown via this link. If the mentioned securities qualify for margin trading, their trading will be suspended.