After bounding clear to win on his hurdling debut at Taunton, Grumeti is now 10/1 from 33/1 with StanJames.com for the Triumph Hurdle.
StanJames.com spokesman Rory Jiwani says, "The way Alan King's new arrival won what was a decent novice hurdle suggests he could be a leading contender at Cheltenham. King knows how to get one ready for the Triumph and we certainly want to keep him on side.
"We went 14/1 initially after his victory but punters got stuck in at that price and we've had to take evasive action by cutting him further to 10/1."
Baby Mix 7/1
Urbain De Sivola 14/1
Ut De Sivola 14/1
Hollow Tree 16/1