Healthcare and biotech stocks are very strong from a quantitative perspective while utilities are having problems powering ahead said Steven Wruble, portfolio manager for the Rx Premier Managers Fund. 'Our equities are showing momentum within the S&P 500. Utilities have probably the lowest momentum. Healthcare and biotech are very strong from a quant methodology,' said Wruble. 'And then from the global piece of this, which is half of the funds, equities are still in favor.' Wruble oversees the Rx Tactical Rotation fund which has returned just over 1% so far this year while being flat for the past 12 months. The fund owns sector ETFs within the S&P 500 Index. The main inputs to the fund’s sector model include price momentum, volume, volatility and the rate of change in volatility. As to why Wruble likes to use ETFs in this particular fund, he says it is because they provide 'an efficient mechanism to gain exposure.'