Theses 12 / 20 WATCH published 05 Apr 2026 · updated 06 Sept 2026 · v33

The Agent Runtime Layer

A new computational layer is crystallising between models and applications — the agent runtime. This is where orchestration, tool use, memory, and identity live. The question of who controls this layer is the central competitive battleground.

+42.9pp
Basket vs S&P 500since published — the verdict number
Basket absolute+57.6% · 4 instruments
S&P 500 same period+14.7%
Call directionWatch

No directional call — this basket is the thesis’s instrument panel.

InstrumentPriceTodaySince publishedvs SPY90d
DDOGDatadog 235.27 -11.5% +101.9% +87.3pp —
MDBMongoDB 352.96 -8.3% +38.4% +23.7pp —
NETCloudflare 280.70 -9.5% +32.5% +17.9pp —
SPYS&P 500 — benchmark 755.72 -1.8% +14.7% — —
Basket: Instrument panel: where the runtime layer accrues if the thesis holds

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When we're wrong

3 theses are currently moving against us — Agents as Primary Users, +12.2% since published; Microsoft Has Lost the Plot, +40.0% since published; The SaaS Apocalypse, +42.0% since published. They stay on the board. We update priors on evidence, not on evidence we went looking for.