Investing.com – Australia stocks were lower after the close on Monday, as losses in the Gold , Metals & Mining and Resources sectors led shares lower.

At the close in Sydney, the S&P/ASX 200 lost 0.16%.

The best performers of the session on the S&P/ASX 200 were Origin Energy Ltd (ASX: ORG ), which rose 6.75% or 0.73 points to trade at 11.55 at the close. Meanwhile, Skycity Entertainment Group Ltd (ASX: SKC ) added 3.61% or 0.03 points to end at 0.86 and IPH Ltd (ASX: IPH ) was up 2.97% or 0.14 points to 4.85 in late trade.

The worst performers of the session were Northern Star Resources Ltd (ASX: NST ), which fell 8.65% or 1.59 points to trade at 16.80 at the close. Polynovo Ltd (ASX: PNV ) declined 4.51% or 0.06 points to end at 1.16 and Collins Foods Ltd (ASX: CKF ) was down 4.35% or 0.40 points to 8.79.

Falling stocks outnumbered advancing ones on the Sydney Stock Exchange by 633 to 465 and 456 ended unchanged.

Shares in Origin Energy Ltd (ASX: ORG ) rose to 5-year highs; rising 6.75% or 0.73 to 11.55.

The S&P/ASX 200 VIX , which measures the implied volatility of S&P/ASX 200 options, was up 5.20% to 11.56.

Gold Futures for August delivery was down 0.83% or 27.80 to $3,318.70 a troy ounce. Elsewhere in commodities trading, Crude oil for delivery in August fell 0.32% or 0.21 to hit $66.29 a barrel, while the September Brent oil contract fell 0.38% or 0.26 to trade at $68.04 a barrel.

AUD/USD was down 0.81% to 0.65, while AUD/JPY fell 0.40% to 94.35.

The US Dollar Index Futures was up 0.07% at 96.89.