Recast's modeled response curves, channel by channel. See where current spend sits relative to the saturation point — and how much room there is to scale before diminishing returns kick in hard.
Per-channel response curves
Headroom detail
| Channel | 7d Spend | Half-saturation pointspend at 50% max | % Saturatedcurve position | Headroom | mROI at current |
|---|
Each curve plots incremental revenue against weekly spend for that channel, fit by Recast from the live model. The shape is the classic Hill response: small spend earns less than proportional return, mid-range spend is most efficient, high spend hits diminishing returns.
The dot on each curve marks where the channel is sitting right now. % Saturated is the curve's position between zero and the asymptote — channels near 50% are in the steep, high-return zone; channels near 90% are flattening fast.
Headroom is the dollars of additional weekly spend you can add before mROI drops below 2×. Use it to size reallocation decisions: if Linear TV has $40K headroom and Search Branded has none, shifting budget is supported by the model.