Nikita Bier, head of product at X, said the team is accelerating development; video, a video editor and Spaces are due to launch soon. Cashtags, custom timelines and other features have been rolled out, and many upcoming features will debut on Android first.

U.S. President Trump will meet House Republicans at 5 p.m. ET Tuesday (5 a.m. Beijing Wednesday).

KRX is soliciting bids for a research project to assess the market impact of a surge in high-frequency trading (HFT) and to explore regulatory options, the exchange said on the 20th. Bids are due on the 27th and the study is slated for completion in H2. HFT uses sub-second, fully automated order flow and is heavily used by foreign institutional investors for latency arbitrage; its profitability rises as securities transaction taxes fall. Concerns that increased HFT could disrupt markets have persisted since South Korea cut the securities transaction tax in 2019. KRX said the study will inform a regulatory framework; existing risk controls include a 2023 registration regime for high-speed algorithmic traders and a batch-order cancellation circuit breaker.