Here’s why these 7 commodities are rebounding

Commodity prices have risen over the past few weeks boosted by bad weather and higher demand in China, Bloomberg reported.

Bloomberg Commodity Index, which tracks returns for 22 raw materials, is up 15 percent since Jan. 20 and was up 3.9 percent this week, poised for the biggest gain since early March.

Gold and Silver

Both metals are up roughly 20 percent this year as speculation that the Federal Reserve will be slow to raise U.S. interest rates boosts demand for the metals as stores of value.

Holdings of silver exchange-trade are near an all-time high.

Bullish gold wagers are the highest since 2012, according to Commodity Futures Trading Commission data released last week.

Oil

Brent in London has gained 21 percent this year.

Cooperation between producers is still possible, according to Saudi Oil Ministry adviser Ibrahim Al-Muhanna.

Supply disruptions in Kuwait and an explosion at an oil facility in Mexico have countered bearish sentiments.

Iron Ore

Ore with 62 percent content delivered to Qingdao climbed 8.8 percent to $70.46 a dry metric ton on Thursday, the highest since January 2015, according to Metal Bulletin Ltd. data.

Steel-making material is up 84 percent since bottoming in December.

Chinese steelmakers ramped up production to take advantage of bigger profit margins that have boosted demand.

Zinc

Best among LME industrial metals, with prices up 18 percent this year.

Bull market fueled by prospects of shortages after mine shutdowns and a jump in refined-metals imports by China

Copper

Prices have risen 6.1 percent this year

Analysts, traders and brokers are the most bullish since December, according to a survey by Bloomberg News

Restocking in top user China and signs of improving demand there are boosting prices.

Soybeans

Prices up 17 percent since March 1

Dryness in Brazil and flooding in Argentina are damaging crops

With South American plants under threat, more buyers may turn to U.S. growers for supplies

Futures in Chicago have seen record trading volume this week and open interest is also at an all-time high.