Weakening U.S. demand, sustained whale exposure on Bitfinex, and a critical on-chain rejection level are signaling potential near-term downside for bitcoin as the Las Vegas Bitcoin Conference begins.

Bitcoin’s rally stalled late Sunday after failing to hold above $79,400, with prices retreating toward $77,000. The pullback follows a strong advance and suggests that bullish momentum may be fading in the short term.

The Coinbase premium index has flipped negative for the first time since April 8, according to Coinglass, dropping to -0.04%. This ends a 14-day stretch of positive readings—the longest since October—that had reflected consistent buying from U.S. investors and supported bitcoin’s rise from $66,000 to nearly $79,000.

This metric tracks the price difference between Coinbase, commonly used by U.S. institutions, and offshore exchanges such as Binance. A move into negative territory points to cooling U.S. demand, leaving the market more dependent on offshore flows—conditions that have historically aligned with consolidation or short-term declines.

Meanwhile, a closely monitored Bitfinex whale remains near peak long exposure, holding 79,342 BTC, just below a cycle high of 80,100 BTC. This entity typically reduces positions once a local bottom is confirmed or when strong upside momentum develops. The persistence of elevated exposure despite recent gains suggests limited conviction in further upside and increases the risk of a pullback.

On-chain data further reinforces the cautious outlook. Bitcoin has been unable to reclaim the short-term holder realized price (STHRP) at $79,200, a level representing the average cost basis of coins held for fewer than 155 days. Continued trading below this threshold raises the likelihood of selling from recent buyers, adding downward pressure.

Finally, the start of the Bitcoin Conference may also weigh on sentiment. Historically, such events have coincided with fading rallies, and early signs indicate the current move may be following a similar trajectory.