Digital asset investment products linked to Ethereum saw inflows of around $17 million in the week ending April 21, up from $300,000 in the previous week, according to a report from CoinShares. The inflows suggest investor confidence following the blockchain's upgrade on April 12. However, total investments in digital asset products saw outflows of around $30 million last week, ending a six-week run of inflows. The report suggests the sell-off was due to profit-taking, particularly in the absence of any macro-economic triggers. (forkast)