YouTube videos that dominated the charts in Bangladesh over the last 7 days.
The weekly ranking measures consistency over time - every hour spent in the top charts counts. A single-day viral spike carries far less weight than a video that dominates for several consecutive days.
How fast this chart renews itself
Over the last 7 days, the ranking in Bangladesh replaced an average of 20% of its entries every day, moving between 14% and 26% depending on the day. That is an unusually stable chart, where a hit installs itself for weeks instead of days. 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 15 consecutive days: Amar Kobita - Odd Signature. 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 পাখি কেন পর হইলি আমার আপন হইয়া, up 25 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.