GLOVIZ
Two sources, one signal

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GLOVIZ picked Day-ahead power price DE from Energi Data Service (Energinet) and Day-ahead power price DK1 from Energi Data Service (Energinet): two institutions, two measurement programmes, one signal. The pair qualifies because the changes move together, not just the trends, with r = 0.99 over 1,662 matched observations. Coincidences are filtered on the correlation board.

Day-ahead power price DE and Day-ahead power price DK1Energi Data Service (Energinet) against Energi Data Service (Energinet) · Insights opens on load
Sources: Energi Data Service (Energinet), Energi Data Service (Energinet)
The same two, plotted against each other1662 matched points · trend line open
Sources: Energi Data Service (Energinet), Energi Data Service (Energinet)