It's dropping fast, just look at US numbers:Only held above IW this weekend because IW got hit hard by DP2, gonna be impressive if it stays ahead in the future.
Avengers IW Endgame Weekend 2 103,052,274 114,774,810 147,383,211 Weekend 3 55,644,102 62,078,047 63,299,904 Weekend 4 36,686,871 29,452,903 ~29,411,000
For the most part, it's holding surprisingly closely to IW.
After the second weekend, it kind of became a question of whether it was going to stay above IW (because it's a big movie), whether it was going to drop down to IW's numbers (because it's an avengers movie), or whether it was going to start dropping faster (due to being very front loaded, due to being very antipicated)
If everyone goes to see it the first weekend, then legs won't be as good.
Most days it looks comfortably like it'll hold tightly to IW's numbers.
Edit: $29.97m actuals for Endgame dom.