Bitcoin whales are holding onto their assets despite the recent rally that pushed the cryptocurrency above $70,000. The number of unique addresses holding at least 1,000 BTC has risen to 2,104, suggesting that whales expect prices to rise even further. This is significant, as the size of their trades can have a major impact on the market. Additionally, data from Glassnode shows that transfers from exchanges to whales have reached new record highs this month, indicating a big influx of new investors. Meanwhile, spot Bitcoin ETFs in the US continue to drive demand for BTC, with the BlackRock iShares Bitcoin Trust recording its highest daily inflows of $788 million on March 5.