MAC Global Solar Energy Stock Index

The "MAC Global Solar Energy Stock Index" (ticker symbol: SUNIDX) is the tracking Index for the "Invesco Solar ETF," which is an exchange-traded fund (ETF) that is traded on the New York Stock Exchange ARCA with the ticker symbol of TAN (NYSE ARCA: TAN).*

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Investors cannot invest directly in an index but investors can buy and sell the exchange-traded fund (ETF) that tracks that index. An ETF holds a basket of stocks in a single fund. An ETF can be bought and sold in an investor's brokerage account just like an individual stock (consult with your investment advisor).

Keys to the Solar Investment Case

  • Impressive growth potential – Solar has impressive growth potential with forecasts for $3.4 trillion of solar spending through 2040 and with solar representing 35% of all new global electricity generation installs (Bloomberg New Energy Finance). Solar PV will generate 25% of all electricity globally by 2050, up from 2% today (BNEF).
  • Low-cost electricity solution – Solar’s levelized electricity cost has already plunged by 83% since 2010 (Lazard) due to dramatic technology advances and economies of scale. Solar’s cost will plunge by another 71% by 2050 (BNEF), which would make it the cheapest source of electricity by far. Solar has already reached grid-parity in many areas of the world where its low cost now beats both coal and nuclear.
  • Government support is only icing on the cake – Solar has become a self-sustaining industry due to the sharp drop in solar costs and has no need for government subsidies or mandates.
  • Mission-critical energy solution – Solar energy is one of the very few long-term solutions for the world's zero-carbon energy needs with free fuel (sunlight) and zero CO2/pollution emissions. Solar is also a scalable solution that provides wholesale electricity for utilities as well as distributed retail electricity for businesses and homeowners.
  • Jobs, jobs, jobs – Solar is a big employer with 3.4 million global solar jobs (IRENA). Solar provides about 250,000 U.S. jobs, more than the combined number of jobs in the U.S. coal and oil-gas extraction industries.
  • Solar-plus-storage provides robust 24/7 energy solution – Solar-plus-storage systems provide a 24/7 source of electricity and solve solar’s intermittency problem. Solar-plus-storage systems are already cost competitive and will become even more so as battery costs plunge by another 52% through 2030 (BNEF).

Advantages of investing in a solar stock fund versus individual solar stocks

Own the global solar sector in one trade - All qualified solar stocks on developed global exchanges are included in the MAC Solar Index.

Longest track record in the industry - The MAC Solar Index was the first solar index for the exchange-traded fund industry with an inception date of March 31, 2008.

Dynamic portfolio - Quarterly index reviews ensure that new and emerging solar companies are added to the index when they meet the index criteria.

Diversification - Reduce exposure to event/financial risk at individual solar companies with index diversification across:

  1. geography (North America, Europe, Asia),
  2. solar technologies (thin-film, silicon, thermal),
  3. solar value chain (raw materials, PV wafers/cells/panels, solar inverters, capital equipment, solar installers and project developers).

MAC Solar Sector Reports

  • Solar stocks rally on long-term growth prospects; Solar largely shakes off pandemic; China’s transition to subsidy-free solar is progressing well Read More
  • Solar’s cost falls by another 7% and beats fossil fuels and nuclear by even larger amounts; Corporations show strong demand for solar; UN calls climate outlook “bleak” Read More

MAC Solar Index Quarterly Reviews and Changes

  • MAC Solar Index Consultation on Index Methodology Change to Allow More Countries of Listing November 16, 2020 MAC Solar Index is conducting a consultation with market participants on a proposal to add to the list of countries in which MAC Solar Index constituents must be listed. The addition of more stocks to the Index would be beneficial from the standpoint of improving diversification weighting and staying well above the continued listing requirement for a global index of having a minimum of 20 stocks. The Index currently has 26 stocks. The MAC Solar Index currently requires constituents to be listed in one of the following countries: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Hong Kong, Ireland, Italy, Japan, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland, the United Kingdom, and the United States. See the current Index methodology at MAC Solar Index is proposing to add four countries to this list: Israel, Luxembourg, South Korea, and Taiwan. The addition of Israel, Luxembourg, and South Korea would allow the MAC Solar Index to match a well-known standard of developed countries. Of those three countries, there is one stock in Israel at present that may qualify for inclusion in the Index and no prospective stocks at present in Luxembourg or South Korea. Taiwan is being proposed as a country addition because there are currently four solar stocks that trade in Taiwan that may qualify for inclusion in the MAC Solar Index. Questions: 1. What are the advantages and disadvantages of adding each of the above-mentioned countries? Would the addition of any of these countries create any problems for stakeholders from any standpoint? If so, which countries and how? Should any other countries be added to the consideration? 2. What would be the best timing for implementing this proposal if MAC Solar proceeds? Please respond to this survey by November 25, 2020. After this date, MAC Indexing will no longer accept survey responses. To participate in this consultation, please send an email to Thank you for taking the time to respond to this consultation. Read More