On January 21, 2025, the Bitcoin ETF market experienced a significant inflow of $136.4 million, highlighting a surge in institutional interest in Bitcoin.

Following the ETF news, Coinbase recorded a trading volume of $3.2 billion for the BTC/USD pair within just one hour, while Kraken reported $1.8 billion in 24-hour trading volume for the same pair.

On-chain data from Glassnode revealed a rise in active Bitcoin addresses to 920,000, up from 890,000, indicating increased market participation.

The Bitcoin dominance index also saw an uptick, rising to 42.5% from 41.9% the previous day, suggesting a slight increase in Bitcoin's market share relative to other cryptocurrencies.

On-chain metrics indicated an increase in Bitcoin exchange reserves, with an addition of 1,200 BTC to a total of 2.3 million BTC, which could suggest potential future selling pressure.

The Ethereum price also reacted positively, rising by 2.1% to $2,300, reflecting a broader market sentiment shift due to the Bitcoin ETF inflow.

Increased trading volume in the ETH/BTC pair on Binance surged to $450 million shortly after the inflow announcement.

At the time of this inflow, Bitcoin was priced at $45,000, as reported by CoinMarketCap.

Technical indicators showed that Bitcoin's Relative Strength Index (RSI) reached 68, nearing overbought territory, while a bullish crossover in the MACD occurred at 12:30 PM EST.