• The Bitcoin Coinbase Premium Index measures the percentage difference between the Bitcoin price listed on Coinbase and that on Binance.
• The metric shows that US investors are currently putting a higher amount of buying pressure on Bitcoin compared to the worldwide users.
• The indicator hit a new all-time high of about 1% a few days ago, but has since fallen to just under 0.4.
• The decline in the metric suggests that the buying pressure from American investors has dropped off, but the value is still positive, which may be a bullish sign for the asset's price.

The article has a generally positive sentiment, as it suggests that the Bitcoin Coinbase Premium Index remaining at positive values may be a bullish sign for the asset's price. However, it also notes that the decline in the metric suggests a drop in buying pressure from American investors.