The Coinbase Premium Index dropped to minus 0.087 on May 19, its weakest reading since March 31, indicating that Bitcoin was trading at a lower price on Coinbase than on Binance and reflecting softer demand from US-based buyers. The weakness followed a period of significant profit-taking, with holders realizing 14,600 BTC worth approximately $1.14 billion in daily profits on May 4 as Bitcoin rallied toward $82,000. Unrealized profit margins climbed to 17.7% on May 5, the highest level since June 2025, giving holders a strong incentive to take gains at that level rather than hold through further uncertainty.

Despite the negative daily readings, the longer-term picture is more constructive. The 14-day simple moving average of the Coinbase Premium Index has remained above its February lows, a pattern that preceded renewed spot demand on Coinbase during March 2025 shortly before Bitcoin pushed toward $110,000 in the following months. The rising SMA points to easing sell-side pressure even as daily premium readings remain below zero, and Bitcoin continues to hold above the $70,000 to $75,000 range that previously attracted strong spot accumulation. Analyst Amr Taha also noted that Base blockchain revenue climbed to nearly $972,000 on May 19, exceeding late-March levels even as the Coinbase Premium Gap stayed negative, highlighting steady network participation within the Coinbase ecosystem while spot demand gradually rebuilds.