The advance-decline line is breadth in its purest form: a running sum of how many stocks rose versus fell each day. When it diverges from the index — the Nifty climbing while the A-D line sags — participation is narrowing beneath the surface.
Trendvue computes daily advancers, decliners and the cumulative A-D line across the full NSE universe after every close, so you can confirm a trend or catch a divergence before it shows up in the headline index.
A cumulative running total of daily advancers minus decliners. Its direction shows whether a market move is broad-based or driven by a narrow handful of stocks.
When the index rises but the A-D line falls, fewer stocks are participating — a narrowing that often precedes a top.
After every NSE close, on settled end-of-day data.