By Paul Kiernan 

RIO DE JANEIRO--Brazilian stocks closed lower Monday on concerns about the outlook for commodity prices and local economic policy, while the currency recovered some of the past week's heavy losses.

Brazil's benchmark Ibovespa stock index fell 0.9% to 52275.38 points. Volume was light, with 4.84 billion Brazilian reais changing hands.

The real closed moderately stronger, exiting active trading at 2.5542 Brazilian reais to the dollar, according to Tullett Prebon via FactSet, compared with 2.5676 reais at Friday's close.

Brazil's stocks and currency have shed about 5% of their value over the past month, most of it following the Oct. 26 reelection of left-leaning President Dilma Rousseff.

Analysts say local financial markets are likely to continue seeing high volatility until Ms. Rousseff names a successor for outgoing Finance Minister Guido Mantega. Appointments to the government's economic team will provide some key insight into the direction of policy during Ms. Rousseff's second term after her first four years in office were beset by flagging growth and stubborn inflation.

Igor Graminhani, a technical analyst at Sao Paulo's Alpes brokerage, said the Ibovespa has been in a negative trend since early September and has yet to show signs of changing.

"I don't see an opportunity for investors to get in right now," he said.

Shares of mining giant Vale tumbled 2.5% to 20.18 reais, their lowest close since March 2009, as prices for iron ore remained near five-year lows.

Sao Paulo-based SulAmerica Investimentos said in a note Monday that the world iron-ore market is likely to remain over-supplied for the next four years as new projects from mining majors like Vale come on-line.

"Commodities prices should continue falling or should stabilize at low levels going forward, negatively affecting terms of trade for commodity exporting countries like Brazil," the firm said.

State-owned oil firm Petrobras fell 2% to 13.98 reais, bank Itau slipped 0.3% to 36.05 reais, and steel maker Gerdau fell 2.2% to 11.34 reais.

Write to Paul Kiernan at paul.kiernan@wsj.com

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