(Sharecast News) - London's FTSE 250 was down 1% at 20,563.22 in afternoon trade on Friday, with no obvious rhyme or reason for any of the moves.

Endeavour mining was the top performer on the index, closely followed by Ninety One and British Land.

On the downside, opioid addiction treatment maker Indivior was the worst performer on the index. Earlier this week , it emerged the company will be removed from Europe's Stoxx 600 Index effective 23 September.

Bakkavor was also in the red. On Thursday, the food producer posted a jump in first-half profit and revenue and said it was confident in delivering on its upgraded full-year outlook.

FTSE 250 - Risers

Endeavour Mining (EDV) 1,578.00p 2.00%

Ninety One (N91) 161.60p 1.96%

British Land Company (BLND) 441.60p 1.70%

International Public Partnerships Ltd. (INPP) 133.00p 1.68%

Baltic Classifieds Group (BCG) 285.00p 1.60%

Assura (AGR) 41.00p 1.33%

Keller Group (KLR) 1,636.00p 1.24%

TI Fluid Systems (TIFS) 132.20p 1.23%

Renishaw (RSW) 3,325.00p 1.22%

Ashmore Group (ASHM) 176.60p 1.20%

FTSE 250 - Fallers

Indivior (INDV) 812.00p -10.77%

Babcock International Group (BAB) 482.20p -3.85%

Crest Nicholson Holdings (CRST) 193.30p -3.54%

Bank of Georgia Group (BGEO) 4,180.00p -3.35%

Domino's Pizza Group (DOM) 294.40p -2.90%

Auction Technology Group (ATG) 379.00p -2.82%

Mony Group (MONY) 202.80p -2.59%

Ithaca Energy (ITH) 113.00p -2.59%

Patria Private Equity Trust (PPET) 535.00p -2.55%

Bakkavor Group (BAKK) 153.50p -2.54%