Exchange-traded fund issuer ProShare Capital Management LLC "temporarily" suspended shares creations in 11 of its ETFs on Friday due to a regulatory filing issue the company expects to be resolved in a few days, according to a spokesman.

The suspension affects ETFs including the $204 million ProShares Short VIX Short-Term Futures ETF, and curtails the ability of specialized dealers to create new ETF shares, possibly increasing investors' trading costs.