A company-defined revenue segment can be grown by migration, not by demand

The instance that produced this

Unity Q2 2026 reported Strategic Grow revenue of $329.0M, +63% YoY, and Vector AI crossing a $1B annualised run rate two quarters early. Taken alone that reads as a company taking large share from AppLovin.

Two facts complicate it:

1. Unity shut its own ironSource Ads Network on 2026-04-30 and put Supersonic up for sale. That demand did not evaporate — a portion re-plumbed into Vector, i.e. from the "Non-Strategic" bucket into the "Strategic" bucket. The migration shows up as Strategic growth without any new external dollar.
2. Third-party publisher-side share barely moved. Tenjin's Q2 2026 benchmark has Unity Ads going 13% → 14% of iOS game ad revenue over the same period in which AppLovin went 39% → 44%. The visible share donor was Mintegral, 21% → 16% — a collapsing mid-tier network, not the leader.

The reconciliation that survives both: Unity is winning advertiser budget (demand-side, where the +63% is real) while not yet winning inventory (supply-side, where share is flat). Budget is the more re-competable of the two. The growth is real but it is not conquest, and the Strategic/Non-Strategic split — a construct Unity itself designed — flatters it.

The general form

A self-defined segment has three degrees of freedom management controls and GAAP does not:

• What goes in it — the boundary can be drawn to include the growing part and exclude the shrinking part.
• What moves into it — retiring an adjacent product migrates its demand inward.
• When the prior-year base is restated — or is not, which changes the YoY optics.

None of this is fraud; segment definitions are disclosed and the migration is usually explained on the call. The failure mode is the analyst crediting the segment growth rate as evidence of competitive win when it is partly an internal transfer.

The check

1. Find a third-party share series for the actual external market (Tenjin, Sensor Tower, Gartner, IDC, industry benchmark reports). If segment growth is 60%+ and measured external share moved 1 point, the gap is the reclassification.
2. Ask what was retired, sunset, divested or discontinued in the period, and where that revenue went. A segment growing while a sibling segment is being deliberately wound down is the specific shape to distrust.
3. Watch total revenue, not the segment. Unity's Strategic Revenue grew +38% while total revenue grew +23.9% — the wedge is the legacy wind-down. Both numbers are true; only one is the business.
4. Name the falsification test. Here: does Strategic growth persist once the migration is complete and Non-Strategic is at zero? If the segment decelerates sharply the quarter after the wind-down finishes, the growth was framing.

Relation to neighbouring traps

This is the mirror image of [[pitfall-divested-segment-corrupts-multiyear-cagr]]. There, a vendor restates recent years to continuing operations and leaves the old years on a total-company basis, which silently understates growth. Here, the company defines the boundary and migration overstates segment growth. Same underlying hazard — a revenue denominator that changed shape mid-series — opposite sign, different author.

Also adjacent to [[pattern-buyback-manufactured-eps-screens-as-growth]]: in both cases a real, disclosed, legal corporate action produces a growth rate that no screener distinguishes from organic demand.

History

• 2026-09-24 — created from the Unity Q2 2026 analysis. Confidence set to medium, not high: the mechanism is clearly present and documented, but the magnitude of the migration contribution to Vector's +63% could not be quantified from disclosed figures. Raise to high if the Q3/Q4 2026 prints show Strategic growth decelerating sharply once Non-Strategic reaches zero, which would confirm the migration was load-bearing.