There is, admittedly, a growing category of inherently bullish investment funds that seek to track commodity-price indices, in which oil is usually the biggest component. Politicians have begun to denounce these “index funds”, since they make money for their investors only if prices rise. According to Mr Lieberman, they have grown in value from $13 billion to $260 billion over the past five years.
Double, Double, Oil and Trouble - The Economist
So it appears to be $260 billion in commodities, not $190 bln, Dantes. But going back to what you're saying, that's still for all commodities and that's only a fraction of oil contracts even if it were 100% oil.
Here's another figure given:
Paul Horsnell of Barclays Capital, an investment bank, puts the total value of index funds and other similar investments at $225 billion. That is less than half the market capitalisation of Exxon Mobil, he points out, and a tiny fraction of the $50 trillion-odd of transactions in the oil markets each year
$225 billion. Still in that range of $190 to $260 (in fact, it's the average).
But what struck me was the $50 trillion number in oil-transactions! Much larger than your figure (and mine!) of $5 trillion. I suppose they are including the sale of all shorts, payments of futures, purchase of oil by consumers, investment, refineries, rigs, etc. Is that likely where it comes from or is it a typo? Some clarity and insight on this would be nice.
He estimates that index funds swelled by $13 billion in the first quarter of this year, for example, of which all but $2 billion derives from the rise in commodity prices.
Hmm... So it's not a rise in investment. It's simply a rise in price caused by rising demand and constant supply. That seems to be what Dante's been saying, no?
How did that $2 billion cause a first quarter rise in the price of oil from $100 to $110/barrel? That's a rise of $10/barrel and we used 7.5 billion barrels during that time ... That's $75 billion dollars in the increase of the end price of oil and it was caused by $2 billion in speculation? That just doesn't seem right. School me if I'm wrong though.