Invesco PowerShares added an emerging markets ETF and an international developed equity ETF to its lineup. Both products are aimed at minimizing stock market volatility.

“We believe the PowerShares family of low volatility ETFs may provide investors a degree of protection in down cycles while still participating in upward trending cycles, and have the potential to improve risk-adjusted returns over the long term,” said Ben Fulton, Invesco PowerShares managing director of global ETFs.

The PowerShares S&P Emerging Markets Low Volatility Portfolio (EELV) contains 200 of the least volatile stocks within the S&P BMI Emerging Markets Low Volatility Index.

The S&P Emerging BMI Plus LargeMid Cap Index includes all publicly listed equity securities with float-adjusted market values of at least $100 million and annual dollar value traded of at least $50 million from the following countries: Brazil, Chile, China, Colombia, Czech Republic, Egypt, Hungary, India, Indonesia, South Korea, Malaysia, Mexico, Morocco, Peru, Philippines, Poland, Russia, South Africa, Taiwan, Thailand and Turkey.

The PowerShares S&P International Developed Low Volatility Portfolio (IDLV) contains 200 of the least volatile stocks within the S&P BMI International Developed Low Volatility Index.

The S&P Developed ex US and South Korea LargeMid Cap BMI Index includes all publicly listed equity securities with float adjusted market values of at least $100 million and annual dollar value traded of at least $50 million from the following countries: Australia, Austria, Belgium, Canada, Denmark, Finland, France, Germany, Greece, Hong Kong, Ireland, Israel, Italy, Japan, Luxembourg, the Netherlands, New Zealand, Norway, Portugal, Singapore, Spain, Sweden, Switzerland and the United Kingdom.

EELV’s annual expense ratio is 0.29%, while IDLV charges 0.25%. These ratios both incorporate fee waivers that are valid through April 20, 2013.