Analysts' Upgrades, Downgrades: Google

CHANGE IN RATINGS

Best Buy (BBY Quote) upgraded at Oppenheimer to Outperform from Perform based on attractive valuation as shares are down nearly 20% since early June. Price target was lifted to $42 from $40. Estimates also raised to reflect better sales at BBY in Jan./Feb.

Bank of New York Mellon (BK Quote) downgraded at Goldman from Conviction Buy to Buy because it will be less of a catalyst compared to the other firms in its sector. Target price set at $39.

Compass Minerals (CMP Quote) downgraded to perform from outperform and $61 price target withdrawn. Potash pricing appears to be ready to crumble, which would directly impact CMP.

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