This week saw nine exchange-traded ET launches, including a fund from iShares that focuses on companies providing innovative environmental solutions.

The iShares Breakthrough Environmental Solutions ETF (ETEC) launched Thursday and tracks a global index from Morningstar that, according to ETEC’s prospectus, covers companies that are involved in “breakthrough innovations and development of new technologies that address the climate transition.”

The fund has an expense ratio of 0.47% and lists on the Nasdaq stock market.

The index implements traditional ESG-related exclusions and scores companies based on their exposure to green technologies related to the following categories: energy efficiency; green buildings; green transportation; pollution prevention and reduction; renewable energy; resource efficiency technologies and services; sustainable agriculture; food and forestry; and water. From there, each company’s different green technologies are scored on how widely they have been adopted, sorting them into three tiers, with priority in the index selection process given to companies with the widest adoption, the prospectus says.

At launch, ETEC held 49 companies in its portfolio.

Also on Thursday, newcomer Summit Global Investments rolled out the actively managed SGI Dynamic Tactical ETF (DYTA), which it had previously been running as a separately managed account strategy. The new fund is a semitransparent ETF and relies on the Blue Tractor methodology to accomplish this. Blue Tractor’s approach discloses the holdings of the fund on a daily basis but obscures the weightings assigned to them.

DYTA uses fundamental analysis and in-house quantitative models to select ETFs for its portfolio. According to Summit Global CEO David Harden, who spoke with etf.com, the fund makes its allocation decisions based on 40 daily quantitative signals. DYTA's selected ETFs can represent key asset classes including global equities, fixed income categories and commodities.

At launch, its holdings include the iShares Core U.S. Aggregate Bond ETF (AGG), the iShares Core MSCI EAFE ETF (IEFA) and the iShares 5-10 Year Investment Grade Corporate Bond ETF (IGIB) among a total of one dozen ETFs.

DYTA has an expense ratio of 0.95% and lists on the Nasdaq stock market.

The very next day, on Friday, the firm launched a second fund, the SGI U.S. Large Cap Core ETF (SGLC). The fund is also an actively managed nontransparent vehicle relying on the Blue Tractor model, but it focuses on large-cap domestic stocks. SGLC looks to provide core exposure to large caps while limiting downside risk. According to its prospectus, it invests in companies that have strengthening business metrics and favorable quantitative factors, while also limiting exposure to social, environmental, legal or governance risks.