"But Thunderbolts does demonstrate Marvel Studios‘ diminished event status at the box office. Should projections hold, the new release will land one of the lower openings of the MCU. It’ll also likely fall below the opening of “Black Widow” ($80 million), which starred original Avenger Scarlett Johansson and introduced “Thunderbolts*” stars Florence Pugh and David Harbour.
In terms of recent comps, “Thunderbolts*” is pacing behind Disney’s previous Marvel outing, “Captain America: Brave New World,” which flew to a $40.9 million opening day back in February, on its way to an $88 million three-day. That movie had more brand recognition with the “Captain America” moniker, but also had bad reviews and a rough reception among fans. It finished its run with a meagre 2.2x multiplier, ending up at $200 million in North America."
So it's tracking behind two of the worst Marvel movies. Black Widow and Captain Black America.