Backrooms collected $5.2M on its seventh day (Thursday), taking its US domestic total to $109.1M.

The horror breakout is holding remarkably well as it moves through the weekdays.
Performance Analysis
Backrooms added $5.2M on Day 7, registering only a 12.6% drop from the previous day. With a $10 million budget, the film has now crossed an outstanding 10.91x ratio in just seven days, solidifying its status as one of the biggest original horror successes in recent years.
The internet-born concept, brought to life with Chiwetel Ejioforβs grounded performance, continues to benefit from massive online buzz and excellent word-of-mouth. The unsettling atmosphere and clever execution have turned the film into a genuine audience favourite that refuses to fade.
The Thursday number shows the movie is retaining impressive interest even outside the traditional weekend window.
In summary, Backrooms is delivering a steady run through the early weekdays.