Plots net call premium (green) and net put premium (red) since the 9:30 ET open as two running lines in a lower pane.
In plain English
What it shows
- Two running lines in a lower pane: net call premium (green) and net put premium (red) since the 9:30 ET open. Premium is the money paid for options contracts.
- A status note shows how many minutes ago it was updated.
How traders use it
- Watch whether call or put money is building faster as the day goes on.
- Compare the lines with the candles to see whether options money and price agree.
What it does not tell you
- The bought versus sold split is estimated from volume and quotes, so it can be wrong on single trades.
- It shows money, not intent: a put can be a hedge as easily as a bet.
Overview
ZoroTide shows options money flow for the day. In a pane below the chart, the green line is the running net call premium and the red line is the running net put premium, both in dollars, starting from the 9:30 ET open. A status line shows when it was last updated.
How it works
The data comes from per-minute samples built from the options chains for SPX, SPY and QQQ (ES and MES map to SPX, NQ and MNQ to QQQ). For each contract, new volume is the volume now minus the previous sample, and premium is new volume times price times 100 (last trade, otherwise mid).
A last trade in the top 25% of the bid-ask spread counts as bought, in the bottom 25% as sold, and in between as half and half. Net is bought minus sold, and the lines add the samples up from the open. Each bar shows the totals at its close; gaps longer than 20 minutes are left blank.
How to use it
- Some traders watch whether the call and put lines are moving apart or coming together.
- Use it to see whether price moves line up with options money flow.
- Some traders compare the slope of each line through the session.
These are ways some traders read it, for learning. They are not trade signals.
Settings
| Setting | Default |
|---|---|
| Net call premium colour | #22c55e |
| Net put premium colour | #ef4444 |
| Line width | 2 |
| Status | On |
Notes and limits
- Works on SPX, SPY, QQQ, ES, MES, NQ and MNQ.
- The bought and sold split is estimated from options volume and quotes.
- Nothing is drawn in bar replay, because the day's totals would show the future.
Education only. Not financial advice. Indicators mark what happened on the chart; they do not predict what price will do. Trading futures, forex, crypto and other markets carries a high level of risk and may not be suitable for everyone.