BUZZ-Drax Group: Shares sink on RBC downgrade
** Shares (Berlin: DI6.BE - news) in Drax Group (LSE: DRX.L - news) fall more than 5 pct after RBC downgrades co
** Stock top loser on FTSE All Share Utilities Index
** Drax pares last 20-day gains, which came in after co announced strategic review
** Heavyweight brokerages gave the move a thumbs up helping the beaten-down power station co's shares rally
** RBC Capital cuts TP on stock to 270p from 300p, changes rating to Underperform
** RBC (Other OTC: RBCI - news) sees few reasons to own Drax in light of continued weak power prices, falling dark green spreads, and extended uncertainty on biomass incentive mechanisms (aashika.jain@thomsonreuters.com)