The DPI (Dark Pool Pressure Index) captures the intensity of dark pool activity compared to its recent average. It acts as a volume pressure gauge — showing whether today's dark pool trading is unusually high or low relative to normal levels.

• ▲ DPI > 1.0: Above-average dark pool activity — possible heightened institutional positioning.
• ▼ DPI < 1.0: Below-average activity — could indicate low conviction or market hesitation.
• ▲ DPI > 2.0 + rising DIX: Strong bullish intent behind large-volume accumulation.
• ▼ DPI > 2.0 + falling DIX: Heavy volume but likely sell-side — watch for downside pressure.