Turkey · Country watch
BIST 50 Rule Change, Istanbul Power Outages
Borsa İstanbul imposes a new short-selling rule; Istanbul faces widespread power outages affecting 36 districts.
The picture Mixed
Business conditions in Turkey are mixed. Borsa İstanbul's new short-selling rule stabilizes markets, while Istanbul's power outages disrupt operations. Consumer confidence rises, potentially boosting retail.
In this briefing Borsa İstanbul · BIST 50 · Capital Markets Board of Turkey · BEDAŞ · Istanbul · Turkish Statistical Institute
Regulation
BIST 50 Implements 'Uptick Rule' for Short Selling
Borsa İstanbul has announced the implementation of the 'uptick rule' for short selling in the BIST 50 index, effective from today. This decision, made in line with the Capital Markets Board's directive, requires that short sales be executed at a price higher than the last sale price. This measure aims to stabilize the market by preventing excessive downward pressure on stock prices, according to Diken.
Impact Traders and investors in BIST 50 stocks face new restrictions on short selling, potentially affecting trading strategies.
Sources: Diken ↗, STAR ↗, haber7.com ↗
Disruption
Istanbul Power Outages to Affect 36 Districts

BEDAŞ has scheduled power outages across 36 districts in Istanbul on 22 September, affecting both the European and Asian sides. The outages, part of planned maintenance and repair work, will last up to nine hours in some areas. Districts like Bakırköy, Esenler, and Kağıthane will experience interruptions at various times throughout the day, Yeni Safak reports.
Impact Businesses and residents in affected districts face operational disruptions due to prolonged power outages.
Sources: Yeni Safak ↗, Haber Turk ↗
Internal tension
Nothing significant reported today.
Safety & health
Nothing significant reported today.
Companies
Nothing significant reported today.
Markets
Consumer Confidence Index Rises to 91.9
The Turkish Statistical Institute (TÜİK) reported a 1.3% increase in the consumer confidence index for September, reaching 91.9. This marks the highest level since July 2018. The index reflects improved expectations for household financial situations and the general economic outlook over the next 12 months, according to Haber Turk.
Impact Retailers and consumer goods companies may see increased consumer spending due to rising confidence.
Sources: Haber Turk ↗, InternetHaber.com ↗, Cumhuriyet ↗
Trade
Nothing significant reported today.
Politics
Nothing significant reported today.
Also today in Turkey
- Altın fiyatlarında yön belli oluyor: Gram, çeyrek ve Cumhuriyet altını bugün ne kadar oldu? Güncel altın fiyatları 22 Eylül 2026 Salı... — Cumhuriyet.com.tr: Son Dakika
- 22 Eylül 2026 deprem oldu mu? AFAD ve Kandilli son depremler listesi açıklandı — InternetHaber.com
- ABD, Danimarka ve Grönland arasında güvenlik anlaşması imzalandı — InternetHaber.com
- Bakan Uraloğlu Türkiye'nin kargo haritasını açıkladı: Yılın ilk yarısında en çok teslimat yapılan beş şehir belli oldu — Yeni Safak
- Brent petrolün varili 102,08 dolar — milatgazetesi.COM
- Ege Üniversitesi karıştı: 27 öğrenci gözaltında — Haberler.com
- Rusya’dan Ukrayna’ya saldırı! Askeri sanayi ve enerji tesisleri vuruldu — Radikal-Rss (Son Dakika)
- Borsa soruşturmasında flaş gelişme: 11 kişi yakalandı — Radikal-Rss (Son Dakika)
Sources in this briefing
Sources: each headline links to the original article on the publisher's site.
The same day elsewhere
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- Brazil: Senacon Targets Fuel Prices, Rio Winds Alert
- Canada: Canada's Bill C-39 and B.C. Election Called
- Germany: Evonik Job Cuts, EU-Philippines Trade Deal
- Egypt: Cybersecurity Boost, Emtelaak's New Licence
- Spain: Spain's Trade Deficit Widens, Ceuta Tensions Rise
- France: Fuel Aid Announced; Agriculture Relief Talks
- Israel: Direct Finance Expands, Iran's Hormuz Offer
- India: Fortis Legal Audit, FD Rule Changes, Textile Rally
- Iran: Iranian Airlines Halt, Dollar Surges
- Italy: Italy's Deficit Woes, Stellantis Production Halt
- Jordan: Amman Deploys Anti-Smoking Tech, Water Theft in Zarqa
- Kenya: Dangote Refinery Begins, New Pension Deadlines
- Lebanon: Fuel Prices Surge, Economic Concerns Deepen
- Morocco: Bank Al-Maghrib Holds Rates, Medicine Prices Cut
- Malaysia: Melaka Assembly Dissolved, UPM Partners with Himalaya
- Nigeria: NEPZA Cracks Down, NSCDC Raids Illegal Factory
- Netherlands: Dutch Settlement Ban, EU Sanctions, Fire Station Break-ins
- Poland: Poland Health Reforms, Fuel Prices Surge
- Portugal: Housing Market Risks, Licensing Code Changes
- Russia: Brent Oil Rises, Used Car Imports Surge
- Senegal: Severe Weather Alert and Senelec Vandalism
- Syria: US-Syria Relations, Financial Sector Transformation
- United States: FAA Outage Disrupts Flights, San Diego Airport Chaos
- Vietnam: Interbank Rates Surge, Vietnam-US Trade Deal Nears