Net Unrealized Profit/Loss (NUPL) measures the difference between market capitalization and realized capitalization divided by market capitalization, expressing the aggregate unrealized profit or loss held across all market participants as a ratio of total network value. Assuming each coin's last on-chain movement represents its acquisition price, NUPL reflects what proportion of the market is currently sitting in profit or loss relative to their cost basis.
When NUPL is above 0, the market in aggregate is holding unrealized profits - a rising value indicates that an increasing share of participants are in profit, which historically correlates with growing incentive to sell and increasing distribution pressure as the ratio approaches and exceeds prior cycle thresholds. Extreme positive readings have repeatedly marked late-stage bull market conditions where the gap between market value and cost basis becomes large enough to trigger broad profit-taking.
When NUPL falls below 0, the market is in aggregate unrealized loss - holders are underwater relative to their cost basis, a condition historically associated with capitulation phases and cycle bottoms. The transition from negative to positive NUPL has frequently marked the beginning of sustained recovery phases, making it one of the most widely referenced on-chain indicators for identifying macro cycle turning points.
