Ether led a broad crypto selloff days before Ethereum’s planned upgrade

Ether led a broad cryptocurrency retreat on January 13, 2019, with two contemporaneous market records showing a markedly steeper decline for ETH than for bitcoin or XRP. The move mattered because Ethereum was approaching a major, backward-incompatible protocol upgrade while the wider digital-asset market remained under pressure after its 2018 contraction.

The surviving data support the selloff, but not a definitive explanation for it. Crypto assets traded continuously across fragmented venues, so prices and percentage changes varied with each provider’s constituent exchanges, calculation method and observation time.

Two indexes, one bearish session

CoinMarketCap’s historical snapshot labeled January 13, 2019 placed ether at $116.90, down 7.13% over its reported 24-hour window. Its recorded market capitalization was $12.199 billion, based on a circulating supply of 104,358,579 ETH, while reported 24-hour volume was $2.268 billion. Ether ranked third by market capitalization, behind bitcoin and XRP.

The same snapshot put bitcoin at $3,552.95, down 2.97% over 24 hours, and XRP at $0.3179, down 3.26%. Other large assets also declined: Bitcoin Cash fell 6.25%, EOS 6.81%, Litecoin 6.36%, TRON 9.28% and Bitcoin SV 8.28%. That breadth indicates a market-wide retreat rather than an ETH-only dislocation.

A separate Investing.com report captured a later or differently constructed reading at 19:08 GMT on January 13. Its index placed ether at $112.96, down 10.08% for the day, with a reported 24-hour range of $112.96 to $124.09. At that observation, bitcoin was $3,480.20 and down 3.62%, while XRP was $0.31157 and down 4.83%.

The figures should not be blended into a synthetic close. CoinMarketCap’s historical page does not disclose the exact capture time alongside the table, and Investing.com used its own index at a stated intraday timestamp. Their agreement is directional: ether was losing substantially more than bitcoin, and weakness extended across major crypto assets.

Constantinople formed the institutional backdrop

Ethereum’s Constantinople upgrade was then expected at block 7,080,000, approximately January 16, 2019. In a first-party notice originally posted on January 7, Crypto Facilities said it would run compatible node software, monitor chain stability and take a snapshot of ETH balances at the fork height. The firm described the change as a planned, backward-incompatible protocol upgrade and said there was no contemporaneous sign of a contentious split or a valuable new forked asset.

That notice establishes what institutional market participants knew before the January 13 selloff: exchanges and trading infrastructure were preparing for a consequential network change. It does not establish that Constantinople caused the price decline. Neither the market tables nor the contemporaneous report identified a verified catalyst, and the broad losses argue against treating the upgrade as a complete explanation.

What the market signal established

The defensible conclusion is narrower. On January 13, ether underperformed bitcoin during a generalized risk-off session, falling 7.13% in CoinMarketCap’s snapshot and 10.08% on the Investing.com index by 19:08 GMT. The variation is a reminder that cryptocurrency had no single official daily closing auction.

The session also showed that an anticipated technical milestone did not insulate ETH from the prevailing market environment. Protocol readiness, exchange preparations and short-term asset pricing measured different things. The records verify the decline and the approaching upgrade; they do not prove investor motive, forced-liquidation totals or a causal connection between the two.