The other day, I received a comment on the blog regarding the fact that gold is running up while oil is breaking down. So, I decided to do a little research.
One way to make money in the markets over the long run is to find correlations and take advantage of them when they breakdown. Pretend you’re looking at a braid. One’s up, the other one seems to catch up. The other one falls and soon the first one follows. They may vibrate differently but they end up going in the same direction and at the same destination. Typically, you buy the cheap one and sell the expensive one. So, should we be selling gold and buying oil? That may be what the blog reader was really asking.
From 2000 until mid 2008, gold and oil moved in tandem. In fact, they were about 80% positively correlated. Gold was always generally about 10 times the price of oil. But, 2008 changed all that. The correlation broke down and it’s been very sporadic ever since. There have been times they’ve moved almost opposite of each other. Why is this? The simple answer is that the global economy slowed taking oil with it. On the other hand, all the easy money and stimulus around the world has lead investors to buy gold as a reserve currency. Also, gold has been a “safe” place to put your money. AKA, part of the fear trade. (I don’t always agree with that but it’s definitely in a long-term bull market that doesn’t look over yet.) In fact, I remain long precious metals.
Above is the picture of the ratio from 2000 to the present. I’ve drawn a red vertical line when everything changed (mid 2008). Y0u can see oil plummeted while gold continued to push higher. In fact, the ratio went from averaging 10 to a high of over 25 (gold is 25 times the price of oil). This was after reaching a low of around 7 earlier in 2008. The recovery in 2009 caused the ratio to revert closer to the mean but the recent European troubles have caused another spike. That’s the ratio. Now for the correlation. In other words, how tight is that braid?
You can see the drop off that started in 2008 (red vertical line) and now the correlation is zero. That means gold & oil aren’t correlated at all. For now, that pairs trade of buying the cheap one and selling the expensive one won’t work. The correlation has broken down.
But, we can’t just look at the last decade. So, I decided to go back prior to 2000. I looked at the data from 1986-2000 to see what the average ratio was between gold & oil. Remember, in the 2000s (last decade), the ratio averaged about 10. From 1986-2000, the ratio was 20! Below is a picture of that ratio.
The current ratio is 17 in 2010. So, perhaps we’re just going back to the normal ratio of 20. How about the correlation back in the 1980s and 1990s? You can see from the picture below (mislabeled – should read Gold vs. Oil Correlation). There was no correlation. It ebbed and flowed back and forth with no real reliability.
What’s the conclusion from all of this? It tells me just like the dollar and gold, that these correlations aren’t consistent enough for us to trade around. Treat gold & oil independently and trade them based on other variables besides watching what the other one is doing.










