Playbook 02 · Grow
Reading Market Reaction Every Week:
From Social Buzz to the Forecast
The starting point
Every week I summarized how the market reacted on YouTube, Instagram and TikTok and shared it with marketing. One question from those reads: do some songs rise when it rains? I tested it across the entire catalog.
Pearson r. The same songs move opposite to sunshine hours (r ≈ −0.53) and solar radiation (r ≈ −0.62).
How I did it
I joined daily streams with Korea Meteorological Administration data (rainfall, temperature, sunshine and more) and correlated every track: ~17K domestic and ~6K international.
Most songs ignore the weather. Only about a dozen cross r > 0.5 with rainfall, a shortlist sharp enough to act on.
A short, evidence-based list of rain songs, and a clear signal for when to push them.
For a company entering APACEvery market has its own signals: social buzz, weather, seasons, platform habits. I track the ones that move your product and time the launch to them.