Forecast oscillator
The percentage difference between the actual closing price and the value the Time Series Forecast predicted — showing how far off the linear-regression forecast has been.
What the numbers mean
The lookback is the Time Series Forecast period whose projection the actual close is compared against. The plot is the percentage difference between what the regression projected and what price did.
- 14 — the Time Series Forecast period it measures against
- 0 — price exactly matching the regression's projection
- Plotted as a percentage difference between projection and actual close
How it is used
Above zero means price is beating its own trend projection, below zero that it is lagging it; crossings are read as shifts in whether the trend is running ahead of or behind schedule.
- Above zero → price is beating its own trend projection
- Below zero → price is lagging it
- Crossings → the trend running ahead of or behind schedule
How it relates to everything else
FOSC only makes sense next to the Time Series Forecast it is derived from, and it inherits that tool's blind spot: around turning points the regression projects confidently in the wrong direction, so the oscillator reports a large error rather than a signal.
- Measures actual price against Time Series Forecast
- Small and jumpy in quiet markets
- Read alongside the regression slope for context
What to watch for
It inherits the regression's blind spot at turning points, and its readings are small and jumpy in quiet markets.