BIST Quarterly Reporting Schedule
Q1 (January–March): Must be disclosed by May 11. First-quarter revenue, profit, and balance sheet data.
H1 / Q2 (January–June): Must be disclosed by August 19. Six-month cumulative figures.
Q3 (January–September): Must be disclosed by November 14. Nine-month cumulative figures.
Full Year / Q4 (January–December): Must be disclosed by March 31. Audited annual results — the most scrutinized report of the year.
Where to Track Earnings Dates
KAP (kap.org.tr): The official source. Search by company name or ticker to find all financial disclosures listed chronologically in real time.
Borsaya.com news feed: KAP earnings disclosures appear in the "bilançolar" (financials) news category as they are published.
Brokerage platforms (İş Yatırım, Garanti BBVA, Gedik) also publish sector earnings calendars with analyst consensus estimates.
How Earnings Dates Move Stock Prices
Beat (above consensus): Stock may gap up at open, but "buy the rumor, sell the news" reactions are common — price can pull back even on strong results if expectations were already high.
Miss (below consensus): Sharp sell-off, especially if the stock had been pricing in optimism.
Pre-earnings volatility: Trading volume and price swings typically increase 1–2 weeks before the release date as investors position ahead of results.