Whether you think Cap and Trade or a Carbon Tax is the way to manage this greenhouse gas, you can invest in allowances via two vehicles. It took forever to come to market but the AirShares ETF is now trading under the symbol ASO. The older alternative, the iPath ETN (GRN) has been on the market since last July. Of course, when you invest in an ETN you are buying an unsecured note of the issuer….so given recent events this might be a consideration.
In our company research section we track the four major “emission credit” companies. We have also just added the the return computations for ASO and GRN to our comparables page.