Bitcoin’s BTC-USD market on Coinbase closed the January 6, 2019 UTC session at $4,040.99, returning above $4,000 during a broad cryptocurrency rebound. The venue’s daily candle opened at $3,799.99, producing an open-to-close gain of 6.34%.
Coinburn calculated that percentage as ($4,040.99 ÷ $3,799.99 − 1) × 100, using Coinbase’s unrounded candle values. This is a reconstruction from historical market data, not a claim that cryptocurrency had a universal closing price. Bitcoin traded continuously across exchanges, and each venue observed its own orders, liquidity and executions.
The move mattered because it interrupted the subdued trading that followed the severe digital-asset contraction of 2018. It did not, by itself, establish that the bear market had ended. On January 6, the defensible conclusion was narrower: buying pressure had carried bitcoin and several large alternative assets materially higher over a defined daily window.
What the Coinbase candle recorded
Coinbase’s BTC-USD candle covers the interval beginning at 00:00 UTC on January 6 and ending immediately before 00:00 UTC on January 7. It records a $3,756.01 low, a $4,088 high, the $3,799.99 open and the $4,040.99 close. Reported trading volume was 10,057.45367318 BTC.
The $332 difference between the candle’s low and high represented an 8.84% range when measured against the low. That calculation describes intraday dispersion; it is not a trader’s return because it assumes executions at both extremes and ignores fees, slippage and order-book depth.
Coinbase documentation warns that historical rate data can be incomplete when an interval contains no ticks. That limitation is unlikely to erase an actively traded daily BTC-USD candle, but the dataset still represents one exchange rather than a consolidated global market.
The advance extended beyond one venue
CoinMarketCap’s January 6 historical snapshot placed bitcoin at $4,076.63, up 6.01% over its displayed trailing 24-hour window. It reported bitcoin market capitalization of approximately $71.21 billion and aggregated 24-hour volume of approximately $5.60 billion.
The same snapshot showed gains across other large assets. Litecoin was listed at $39.30, up 12.13% over 24 hours; ether at $157.75, up 1.14%; XRP at $0.3684, up 3.49%; and EOS at $2.8753, up 6.14%. Nine of the ten highest-ranked assets in the displayed table had positive 24-hour changes, with dollar-linked Tether also quoted above its intended one-dollar reference at $1.0236.
CoinMarketCap’s figures corroborate a broad rebound, but they use a trailing window and aggregate data from multiple markets. They therefore need not match Coinbase’s fixed UTC candle. Reported volume also does not necessarily equal economically distinct buying because exchange coverage, pair conversion and potentially duplicated activity affect aggregate totals.
No verified catalyst
The surviving records establish the prices and measurement windows, not why participants traded. A contemporaneous CoinDesk analysis published on January 7 described resistance near $4,140 after the rally, but technical thresholds are interpretations rather than causes.
No reviewed primary announcement, regulatory decision or macroeconomic release can be shown to have produced the January 6 move. Nor can the session establish what happened after the measurement window. The reconstruction therefore records a significant, broadly corroborated market rebound while leaving its catalyst and durability unresolved.
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This article provides news and analysis, not investment, legal or tax advice. Digital assets are volatile and may result in total loss.