Current & Previous-Day VWAP

The “Current & Previous‑Day VWAP” indicator plots two important volume‑weighted price references on intraday charts:

Current Session VWAP (solid line): The VWAP is the volume‑weighted average price of the current trading session. TradingView’s built‑in ta.vwap() function automatically resets its calculation at the start of each new intraday session
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, so the line accurately follows today’s price action. You can set the color of this line via the indicator’s input (defaults to blue).

Previous‑Day VWAP (dotted lines): At the final bar of each session, the indicator stores the current session’s VWAP value. On the first bar of the following session, it draws a horizontal dotted line at that stored value and extends it across the entire day. This uses TradingView’s session detection functions—session.islastbar to capture the closing VWAP and session.isfirstbar to start the new line
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. An array holds each line and its y‑value so that multiple previous‑day VWAPs remain visible for comparison. The color of these dotted lines is also user‑configurable.

This design lets you see both where the current price is relative to today’s VWAP and how it stands against the closing VWAP levels of previous sessions, all at a glance.