Bitcoin completed a 25% seven-day rebound as $4,000 returned

Bitcoin’s battered market recovery reached a measurable milestone on December 22, 2018. Coinbase’s BTC-USD market closed its UTC daily candle at $3,980.46 after trading as high as $4,005. Compared with its $3,183 close on December 15, that represented a seven-day increase of 25.05%, calculated from the two Coinbase closing values.

CoinMarketCap’s separate historical snapshot for December 22 recorded bitcoin at $4,014.18, up 3.08% over its rolling 24-hour window and 23.68% over seven days. The two records used different observation methods and therefore did not produce identical prices, but both showed that bitcoin had recovered sharply from the preceding weekend and was again testing the psychologically prominent $4,000 level.

What the exchange record shows

The Coinbase candle covers the BTC-USD instrument from 00:00 through 23:59:59 UTC on December 22. It opened at $3,839.26, reached a low of $3,790.16, touched $4,005 and closed at $3,980.46. The close was 3.68% above the open, a Coinburn calculation using unrounded exchange values.

That daily finish followed a volatile sequence. Coinbase recorded a $3,183 close on December 15, a $3,195 close on December 16 and a $3,496.82 close on December 17. The same market then closed at $3,667.77 on December 18, $3,682.51 on December 19 and $4,075.34 on December 20 before falling to $3,839.06 on December 21. December 22 therefore extended the recovery without reclaiming the December 20 close.

This distinction matters: the verified development was a forceful rebound from depressed prices, not an uninterrupted advance or proof that the broader bear market had ended.

A broad but uneven recovery

CoinMarketCap’s December 22 snapshot showed that the move extended beyond bitcoin. Ethereum was listed at $116.76, with a 37.20% seven-day increase. Bitcoin Cash was listed at $196.67 and up 148.45% over seven days. Those figures were rolling snapshot changes rather than synchronized UTC exchange-candle returns, so they should not be compared mechanically with the Coinbase calculation.

A contemporaneous Cointelegraph report also illustrates the importance of measurement time. Earlier on December 22, it described bitcoin at approximately $3,879 and down almost 5% over the preceding 24 hours. It placed total cryptocurrency capitalization at $127.5 billion at that observation point. Coinbase’s later UTC close and CoinMarketCap’s dated snapshot captured the subsequent recovery. The records are not necessarily contradictory; a continuously traded asset can produce materially different readings within one calendar date.

Why December 22 mattered

The rebound arrived after a punishing 2018 contraction had weakened miners, token projects and trading businesses. Recovering $4,000 did not reverse that damage, but it demonstrated that substantial short-term demand remained after bitcoin’s December lows. Gains across several large assets also indicated that the movement was broader than one isolated BTC-USD venue.

The evidence does not establish what caused the rebound. Price records identify the move, not the motives of market participants. No cited primary record attributes it to a particular announcement, institutional buyer or policy change, and this reconstruction does not infer one.

Limits of the record

Cryptocurrency trades continuously across venues, without a single official closing auction. Coinbase’s figures apply only to BTC-USD and UTC daily boundaries; another exchange, currency pair or snapshot time can differ. Coinbase also cautions that its historical candle data may be incomplete where no trades occurred, although candles are present for every date used here.

This 2026 reconstruction confines its market framing to records tied to December 22, 2018. It does not use later prices or subsequent market outcomes to characterize what participants could have known on that date.