We can still say none of them had good legs though
Civil War's run was weird in that it started out strong but then literally every major movie afterwards bombed for weeks on end.
Angry Birds
Neighbors 2
X-men Apocalypse
Alice 2
TMNT 2
Warcraft
Now You See Me 2
It wasn't until Dory that we got another major hit, though maybe The Conjuring 2 counts but that only* made $100M DOM (on a $40M budget). There were so few winners this summer. Suicide Squad is definitely one of them from a financial point of view, especially compared to all the other films that lost studios mountains of money. But both Squad and Civil War have worse legs than every MCU movie before this year. It's been a rough summer for the BO in general.