Gold gains; palladium hits record high.

Gold edged higher on Friday, heading for its first weekly rise in four, as investors focused on Middle East tensions while palladium hit a record peak on short supply.

Spot gold was up 0.1% at $1,500.47, up about 0.8% over the week. US gold futures were steady at $1,506.70.

Meanwhile, palladium jumped 1.2% to $1,643.31 an ounce, having touched a record $1,649.09. The auto-catalyst metal, which is in short supply, was up 2.3% over...