Nov 5 (Reuters) - Bumble on Wednesday forecast

fourth-quarter revenue below analysts' expectations,

underscoring the challenges facing the dating app operator as

its ambitious turnaround plan struggles to gain momentum.

Shares of the Austin, Texas-based company fell 9% in

extended trading.

The company sees fourth quarter revenue between $216 million

and $224 million, midpoint of which is below analysts estimates

of $233.3 million, according to data compiled by LSEG