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.

+52.7pp
Basket vs S&P 500since published — the verdict number
Basket absolute+68.6% · 4 instruments
S&P 500 same period+15.9%
Call directionWatch

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

InstrumentPriceTodaySince publishedvs SPY90d
DDOGDatadog 257.51 -5.7% +121.0% +105.2pp —
NETCloudflare 303.37 -1.3% +43.2% +27.4pp —
MDBMongoDB 360.98 -7.6% +41.6% +25.7pp —
SPYS&P 500 — benchmark 763.59 -1.2% +15.9% — —
Basket: Instrument panel: where the runtime layer accrues if the thesis holds

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When we're wrong

2 theses are currently moving against us — Microsoft Has Lost the Plot, +39.7% since published; The SaaS Apocalypse, +62.1% since published. They stay on the board. We update priors on evidence, not on evidence we went looking for.