04 · Proof
Share of the best possible profit · 100 unseen weeks · run db-20261024T202144Z
Simple rule
charge 1–5am, sell 5–7pm
lost money in 17 weeks
33.1%
£29,265
Same as yesterday
persistence forecast + our optimiser
+19.8 pts · forecasting beats a fixed schedule
52.9%
£46,798
Tempo
LightGBM + greedy · what runs live
+13.5 pts · same optimiser: that's the model
66.4%
£58,711
Tempo LP
LightGBM + linear program
+1.9 pts · a smarter optimiser
68.3%
£60,391
Perfect foresight
knows every price in advance
the ceiling · nobody beats this
100.0%
£88,388
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