PANews, December 13 - According to Lookonchain monitoring, Bitcoin ETF had a net inflow of 5,181 BTC (approximately $520 million) today, of which iShares (BlackRock) had a single-day inflow of 4,322 BTC (approximately $434 million), bringing the total holdings to 535,154 BTC (approximately $53.7 billion). Ethereum ETF had a net inflow of 61,434 ETH (approximately $241 million), with iShares (BlackRock) inflowing 52,099 ETH (approximately $205 million), bringing the total holdings to about $3.86 billion.