Bitcoin approached $9,000 on April 21, 2018 as the cryptocurrency market extended a sharp recovery from its early-April weakness. The move mattered because it showed renewed demand after a prolonged retreat from the speculative peak reached in December 2017—but the available data also showed that trading activity remained far below the frenzy of that period.

CoinMarketCap’s historical snapshot for April 21 recorded Bitcoin at $8,895.58, with a market capitalization of $151.15 billion and reported 24-hour volume of $7.55 billion. Its snapshot placed the asset 0.89% higher over 24 hours and 10.63% higher over seven days. Those figures represent CoinMarketCap’s aggregated snapshot, not the closing price or executed volume of a single exchange.

Kraken’s contemporaneous daily report supplied a venue-specific comparison. The exchange reported Bitcoin at $8,776, up 3.13% for its reporting day, with $132 million traded in the instrument and $350 million across all markets covered by the report. Kraken had reported Bitcoin at $8,510 and total market activity of $328 million on April 20. The two datasets therefore differ because they cover different venues, currency pairs, calculation windows and snapshot times; they should not be treated as interchangeable closing-price records.

The rebound was broader than Bitcoin

The strongest signal on April 21 was not Bitcoin’s modest daily change but the scale of the seven-day recovery across other large assets. CoinMarketCap recorded Ethereum at $605.40, down 1.30% over 24 hours but up 19.57% over seven days. XRP stood at $0.8731, down 4.85% for 24 hours and up 37.15% for the week.

Bitcoin Cash was the clearest large-cap example. Its recorded price of $1,154.69 represented a 2.86% 24-hour gain and a 55.37% seven-day advance. Cardano and Stellar were up 43.52% and 47.24%, respectively, over seven days even though both declined during the latest 24-hour window. That combination—large weekly gains alongside mixed daily performance—indicated consolidation after a rapid market-wide repricing rather than a uniform surge on April 21 itself.

The rankings also captured a changing competitive field. CoinMarketCap placed EOS fifth by market capitalization at approximately $8.99 billion, ahead of Litecoin at approximately $8.37 billion. Rankings based on circulating supply and spot price could change quickly, and they did not measure network use, liquidity quality or ownership concentration. Still, the snapshot showed how capital was rotating among prominent cryptoassets during the rebound.

Recovery did not mean the boom had returned

The market’s improving prices contrasted with evidence of diminished participation. A Reuters report available by April 20 cited CryptoCompare data showing average daily cryptocurrency-exchange volume of $7.4 billion during the first half of April, compared with $9.1 billion in March and nearly $17 billion in December 2017. Those figures describe CryptoCompare’s cross-exchange sample and methodology, not Kraken’s narrower daily total or CoinMarketCap’s asset-level rolling volumes.

That distinction is important. Rising prices can reflect renewed risk appetite, reduced selling pressure or thinner order books; the April 21 records alone cannot establish which force dominated. Nor could one week of gains demonstrate that the market’s months-long decline had ended.

By April 21, the verifiable conclusion was narrower: Bitcoin had recovered to the edge of $9,000, the rebound had spread through much of the large-cap market, and trading conditions remained materially quieter than during the December peak. It was a meaningful change in market direction, but not proof that the speculative cycle had fully restarted.

Primary sourceKraken Daily Market Report for April 21, 2018

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Financial-risk note

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