Measured against the index, from the day it was stated.
A thesis that cannot beat buying the whole market is a thesis that cost you money to hold. This one is ahead — the benchmark is shown either way.
Intermittent generation makes storage and demand flexibility more valuable than more generation.
Weights are frozen at the moment the premise was stated. Nothing has been rebalanced, so this measures the claim rather than the trading around it. This link carries no stated date, so the window is a default 180 sessions rather than a real one. Books composed from now on carry their date.
Prototype figures. The return series is synthetic, drawn from the premise itself and centred on the index — so roughly half of all books lose. Try several premises and you will find losers. Replace with a real return series before this page is shown to anyone.