Upbit has launched a service that allows users to track fund flows into U.S. spot bitcoin (BTC) and ether (ETH) exchange-traded funds (ETFs). Korean investors can now check in a Korean-language environment how much money from traditional finance is flowing into the digital asset market.

Dunamu, which operates the digital asset exchange Upbit, said on Wednesday it has launched the "Spot ETF Trends" service on Upbit Data Lab.

The Spot ETF Trends service on Upbit Data Lab provides ETF net inflows, 52-week highs and lows, cumulative net inflows, assets under management (AUM) and ETF bitcoin and ether holdings.

ETF net inflows show the flow of funds entering or leaving ETFs over the selected period. Cumulative net inflows indicate total inflows since an ETF launched.

It also provides indicators for bitcoin and ether holdings. AUM can change with asset price moves, but holdings show the amount of digital assets actually held by ETFs and can be used to assess supply and demand.

The service is designed to allow comparisons not only through data sheets but also alongside bitcoin and ether prices and market capitalisation trends.

The service currently provides data for 8 spot bitcoin ETFs and 7 spot ether ETFs. Data are updated around 9 a.m. Tuesday to Saturday, Korea time.

Because of delays in disclosures in the United States, data from 2 trading days earlier are displayed, and no data are generated on U.S. stock market holidays.

Upbit Data Lab plans to expand the service to include spot ETFs for Solana (SOL) and XRP (XRP), and to add its own analytical indicators combining ETF fund flows and global market data in stages.

Kim Daehyun (김대현), Dunamu's chief data officer (CDO), said detailed information on digital asset spot ETFs had been difficult to access in South Korea. He said the service is expected to help domestic users easily grasp global market trends.