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Trading session

A trading session is the period with defined opening and closing times during which trades take place on the exchange. On the Borsa Istanbul Equity Market trading runs in one continuous session: opening auction (order collection and single price), continuous trading, closing auction and trade-at-close segments follow one another.
Contents
  1. 1.Key points
  2. 2.Formula / calculation
  3. 3.Interpretation
  4. 4.Pitfalls
  5. 5.Frequently asked questions

Key points

  • Hours are announced by Borsa Istanbul and shortened on half days.
  • Intraday price moves are used in intraday analysis, while closing prices feed daily charts and indicators.
  • orders entered outside the session are matched in bulk at the open and may fill at unexpected prices.

Formula / calculation

the opening auction is a short morning period where orders are collected and matched at a single price; continuous trading is the main segment with instant matching all day; the closing auction sets the end-of-day single price, which becomes the next day’s reference price.

Interpretation

Intraday price moves are used in intraday analysis, while closing prices feed daily charts and indicators. The opening and closing minutes see the highest volume.

Pitfalls

orders entered outside the session are matched in bulk at the open and may fill at unexpected prices. Watch the public holiday and half-day calendar. VIOP and equity market hours differ.

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Frequently asked questions

A trading session is the period with defined opening and closing times during which trades take place on the exchange.

the opening auction is a short morning period where orders are collected and matched at a single price; continuous trading is the main segment with instant matching all day; the closing auction sets the end-of-day single price, which becomes the next day’s reference price.

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