Global boutique fitness giant, Xponential Fitness, has refused to comment on rumours it's considering an IPO.

It is the second time in 18 months that rumours have emerged of a potential listing for the group.

Xponential was first linked to a potential launch onto the stock market in January 2020, but disruptions caused by the pandemic were believed to have put a stop to any plans for a listing.

It seems that the group – which last month added boxing studio operator Rumble to its portfolio of brands – may be rekindling those plans, with analysts projecting values as high as US$1.3bn.

Xponential is backed by entrepreneur and CEO Anthony Geisler and Snapdragon Capital Partners and has grown rapidly in recent years.

In addition to the recently-acquired Rumble, its family of franchised fitness brands includes Pure Barre, Club Pilates, CycleBar, YogaSix, StretchLab, Row House, AKT, and STRIDE.

The group opened 394 new locations in 2019 and another 240 during the pandemic-hit 2020.

It recently launched five of its brands in the emerging Saudi Arabian market, including Club Pilates, Pure Barre, AKT, YogaSix, and CycleBar.

Rumble has already opened 20 new clubs since being bought by Xponential.

The company achieved around US$435m income from franchisees in 2020, in spite of the pandemic.