In 2009, Express Scripts (NasdaqGM: ESRX) spent $4.7 billion to acquire WellPoint and followed up that deal with the $29 billion acquisition of Medco in 2012. [Healthcare ETFs Remain Sturdy]

Last year, Morgan Stanley identified Express Scripts, Cigna and Aetna as possible takeover targets. Investors like the IHF story. A year ago, IHF had about $400 million in assets under management, meaning the ETF’s AUM total has more than doubled in a year. [Obamacare ETF Keeps Rising]

More Americans are enrolling into healthcare plans under the new Patient Protection and Affordable Care Act, or the so-called Obamacare Act, the 2010 law that requires all Americans to hold health insurance, further bolstering the case for IHF and its constituents.

iShares U.S. Healthcare Providers ETF