How fast this chart renews itself

Over the last 7 days, the ranking in South Korea replaced an average of 59% of its entries every day, moving between 50% and 67% depending on the day. That is a chart that turns over faster than it settles, where roughly half the entries survive a second day. This figure comes from comparing our own daily snapshots: YouTube publishes the ranking of the moment, never how much of it survived since yesterday.

The chart carries about 50 entries a day, filled by 50 distinct channels, so almost every slot belongs to a different publisher. Concentration only appears when one channel places several videos at once, which is exactly what the ranking above lets you check.

The most resistant video of the week held on for 6 consecutive days: anime. Survival time is a far better measure of a video's strength than the position it opened at, because it is the only one a launch budget cannot buy.

The sharpest climb belonged to It was you, up 36 places in a single day. A jump of that size in twenty-four hours almost always signals an audience arriving from outside YouTube rather than gradual discovery.