SET plunges 26 points on sell-off in DELTA and bank stocks, plus TSD data leak hitting confidence

Price ActionRegulation
โดย Kaohoon·Read original
Summary · why it matters

The Thai stock market closed down 26 points, pressured by heavy selling in DELTA and banking shares, along with a breach of user data on the TSD Investor Portal that dented investor confidence. Mr. Narongdech Chantarapaisarn, Director of Securities Analysis at AIRA Securities, said DELTA led the electronics sector in dragging the index sharply lower, amid global concerns over AI investment and a correction in semiconductor stocks. Meanwhile, bank stocks were sold for profit after recent gains. TSD disclosed that user data on the TSD Investor Portal system was accessed without authorization, affecting around 200,000 investors out of roughly 5 million total users. However, TSD confirmed that no securities holding data, investment portfolios, or transaction information was leaked, and that malicious actors could not access passwords or critical data used for financial transactions. It has stepped up cybersecurity measures and is coordinating with the cyber police to track down the perpetrators. Mr. Asadej Kongsiri, Director and Manager of the Stock Exchange of Thailand, apologized to those affected and confirmed that no damage has yet been found from the incident. Analysts assessed that the data leak may hurt short-term confidence but is unlikely to directly impact stock trading.

Impact on stocks 2

Electrification & Mobility▼ · 1 stocks
Financials▲ · 1 stocks

Off-coverage companies 1

Thailand Securities Depository Co., Ltd.Private▼ Negative
Regulationrelevance

TSD suffered a data breach on its Investor Portal, denting confidence and requiring cybersecurity measures.

© 2026 MarketDXNews