Ballsofgold,
You mentioned ratios to create custom time series. Whats the point of this if you are the only one trading it? Wouldnt the trader be fooled by randomness in attempts to apply levels and other technicals that depend on traders behavioir in markets where you, or only a scant few,are atually trading the series?
As you can tell, i struggle with the above issue and frequently assign importance to randomness.
Thanks.
I dont understand your question...
If you want to trade bund bobl schatz fly, i think the ratio is 1-4-3...but then you also have to put in the pricing ratio....another example
If you put in a heat vs wti crack spread 1 for 1, the price ratio is * 42 on the ho leg to turn from gallons to barrels
Lets say hypothetically, one leg on an rv pair has has a much higher vol...instead of doing it by price to create a usd neutral pair, you can do 2 by 3 with the hopes of smoothing out the vol.....this tends not to work most of the time but it clearly illustrates how you can create a new times series.
This is pretty much what box spreads and flies are all about...alot of interest rate traders do this..
In terms of randomness, feel free to read above comments where i have mentioned...you need to have an idea of why a relationship exists, dont just chart a fly for the sake of it....understand the price drivers..also the idea that spread trading is less risky than flat price is a fallacy.