NVT Signal (NVTS) is a derivative of NVT Ratio by Dimitry Kalichkin which provides more emphasis on predictive signaling ahead of price peaks.
NVTS = Network Value / 90d MA of Daily Transaction Value.
This differs from Standard NVT Ratio which is simply the Network Value divided by Daily Transaction Value, and then interpolated using forward/backward moving averages to create a smooth line.
On-chain volume are estimates from:
Coin Metrics volume estimates are from their Data Pro product used here under license