Tuesday broker round-up

SSE: Berenberg upgrades to Buy with a target price of 1650p

Balfour Beatty: Bank of America Merrill Lynch upgrades to Buy with a target price of 345p.

Prudential: HSBC maintains Buy with a target price of 1980p.

IMI: Jefferies reiterates Hold with a target price of 1275p.

Spirax-Sarco: JPMorgan reiterates Overweight with a target price of 5000p.

Aviva: Deutsche Bank reiterates Buy with a target price of 585p.

Inmarsat: Deutsche Bank reiterates Buy with a target price of 1020p.

Amerisur Resources: Barclays reiterates Overweight with a target price of 29p.

Premier Oil: Barclays reiterates Equal Weight with a target price of 70p.

Vodafone Group: Credit Suisse maintains Outperform with a target price of 225p.