According to Forbes, Aquaman is having a strong domestic hold, so the movie is clearly NOT struggling. AM will do over the average DCEU movie and will be the 5th biggest solo movie of all time.
With $1.1 million on Tuesday, Aquaman may hold off the whole "under $1m-per-day" thing until next Monday (or it may drop today, on its 34th day). If it holds off until Monday, that would be on its 39th day, which is about on par with The Dark Knight, Jumanji: Welcome to the Jungle and The Jungle Book (day 41) and slower than the likes of Rogue One (day 35) and The Last Jedi (day 34) despite much larger opening weekends ($155m in 2016 and $220m in 2017). For those keeping track, Spider-Man, Star Wars: The Force Awakens and Jurassic World all dipped below $1m in daily domestic grosses on day 46, while Wonder Woman held on until day 47. Black Panther, Frozen and The Avengers held out until day 53 while Jurassic Park and Shrek 2 dropped on day 55.Oh, and as for Star Wars Episode One: The Phantom Menace? That leggy summer blockbuster didn’t dip below $1 million a day until its 62nd day of release. It took Titanic 102 days to dip below $1m per day, occurring just days before it would lose the weekend box office crown to Lost in Space exactly 20 years ago. It took Avatar 81 days to dip below $1m just after it lost its IMAX screens (and many of its 3D screens) to Alice in Wonderland at the beginning of March of 2010. Oh, and it took The Greatest Showman 36 days to dip below $1m per day, which is insane when you consider the movie had a $2.4m opening day. But that's a conversation for next week (or tomorrow).
Aquaman has earned $307.852 million domestic after 33 days in theaters. It should enter its sixth weekend with around $310m domestic as it tries to earn around $6m over the weekend for a new $316m domestic cume. At that point, it'll be right in between Iron Man 2 ($312m in 2010) and Iron Man ($318m in 2008) among comic book superhero movies. Moreover, it'll have sold more tickets than Man of Steel even when adjusted for inflation, while extending its weekend-to-final multiplier to an absurd 4.35x. Once it gets to $319m, it'll have earned 4.4x its $72.5m opening weekend (counting the sneak previews) and be officially leggier than The Legend of the Lone Ranger ($12.6m/$2.9m in 1980), The Crow ($50.6m/$11.7m in 1994) and Sky High ($64m/$14.6m in 2005).
While it may not get much farther than $330 million, that would be enough to push it past Deadpool 2's $324m cume, counting Once Upon A Deadpool along with Suicide Squad's $325m cume and possibly Batman v Superman's $330m finish. That would also, in terms of post-debut legs, push it past Superman III ($59m/$13m in 1983) to be the eighth-leggiest comic book superhero movie of all time. It would be ahead of Batman Begins ($206m/$48m in 2005), The Amazing Spider-Man ($262m/$62m in 2012), Spider-Man ($403m/$114m in 2002), Wonder Woman ($413m/$103m in 2017), Black Panther ($700m/$202m in 2018) and Blade ($70m/$17m in 1998).
Box Office: 'Aquaman' Is The Leggiest Comic Book Superhero Movie In 25 Years
So, yeah, it's not struggling at all.