Healthcare exchange traded funds were up to their old tricks again Wednesday when nine such ETFs made all-time highs. That is nine healthcare ETFs making all-time highs on a day in which U.S. stocks sank.

That is nine of 14 ETFs overall that touched record highs Wednesday and that is to say the healthcare sector, the S&P 500’s third-largest sector weight, is still strong and certainly beloved by investors. Three of this year’s 10 best non-leveraged ETFs and four of the top 10 non-leveraged sector ETFs are health care funds. [Healthcare ETFs Can Keep Rising]

However, with healthcare’s sector leadership extending into a fifth year, some market observers believe that while healthcare stocks and ETFs do not need to be sold outright, a more restrained view of the sector is necessary, explaining AltaVista Research’s neutral rating on the Health Care Select Sector SPDR (NYSEArca: XLV).

AltaVista’s neutral rating implies average appreciation potential.

“A rating of NEUTRAL is assigned to funds with ALTAR Scores between 6.0% and 8.0%. This indicates that valuations adequately reflect the fundamentals of stocks in these funds. The majority of funds we cover fall into this category,” said the research firm in a note.