The whole world's economy is in a declining point. the trade war between US and China, Russia-US concerns on different issues and Trump too many opt-outs of international agreements and treaties, have had an impact on all indexes, stock markets and industrial forecasts.

But there are commodities which has grown in value.

Oil

Oil has been one of them. due to concerns of Iran returning sanctions, oil prices started to slightly rise. but the bullish sentiment grew as the main supporter of the sanctions, Kingdom of Saudi Arabia, who had promised the markets that they will compensate the 4 million barrel per day, Iran's share of oil production, started tk act irresponsible in a human right case, as they killed a journalist, Jamal Khasheggi, in their consulate in Istanbul.

Now they have put US in a difficult position to stand by them against Iran, or stand by angry nations and people of the world, against Saudi family.

Gold

It's an old story, proven time to time: as the concenrs of possibility of wars, political conflicts and economy problems rises, the price of Gold rises too!
Gold looks like an unbeatable rival in the terms of immunity of world's assets. so many investors try to keep the calue of their assets in to gold, as they get terrified by economy and political situation.

Bitcoin

I had this belief that Bitcoin can play a commodity role in hedge funds and risk management plans. I'm talking about big assets and large account managers. once after the intense rise of bitcoin and altcoins in 2017, people like George Soros showed interest in BTC, my theory got more strength. but as the market moved on a downward direction for a long time, I get skeptic if the financial systems would trust the cryptocurrency market to hold their assets in.