- The TDCI in U.S. dollars edged up 0.6% last week, as a drop the energy sub-index partially offset gains elsewhere. In Canadian dollar terms, the index was up by a stronger 1.1%.

- Crude oil prices slid to US$76 per barrel by the end of the week on concerns that prices have gotten ahead of fundamentals. This morning, however, a drop in the U.S. dollar has pushed prices back above US$78 per barrel.

- The precious metals sub-index jumped 3% on the week, led by a 6% gain in silver prices. Both gold and silver have been rallying on the back of a weak U.S. dollar, but silver has also benefited from signs that industrial de­mand for the metal will pick up alongside the economic recovery. Despite the recent spate of new records set by gold, with prices now 50% above year-ago levels, silver has outperformed, up 95% from year-ago levels.

- Base metals also enjoyed a strong week, with prices up across the board. Aluminum led the way with a 4% jump, as China - the world's largest producer - hiked electricity costs, prompting concerns that producers will pass the increase onto buyers.

-Copper prices hit a 14-month high, driven by a slide in the U.S. dollar, news that Japan's economy grew at the fastest pace in two years, and concerns that labour disputes in South America will constrain supply.

    - Zinc prices were up 3.3% on the week on worries that snowstorms in China - the largest producer and con­sumer of the metal - may have reduced supply in the country.

    - Wheat prices extended its gains for a third week, rising by 4.3%. Unusually wet weather in the U.S. triggered concern that planting will fall by more than was initially expected. An inflow of fund and technical buying also helped to buoy prices during the week.

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