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Insightful Observations on ETF Inflows: MUB Insightful Observations on ETF Inflows: MUB

Notable Inflows in iShares National Muni Bond ETF

Examining the week-over-week changes in shares outstanding among the wide array of ETFs cataloged, one particular case that shines is the iShares National Muni Bond ETF (Symbol: MUB). It has witnessed a remarkable influx of approximately $193.8 million — marking a respectable 0.5% escalation in outstanding units from 357,300,000 to 359,100,000.

The graphic depiction below outlines the one-year price performance of MUB in relation to its 200-day moving average:

iShares National Muni Bond ETF 200 Day Moving Average Chart

Scrutinizing the graph above, MUB’s 52-week range reflects a nadir of $100.78 per share with $108.82 standing as the zenith — these figures juxtaposed against a recent trade at $107.70. Drawing a parallel between the latest share price and the 200-day moving average can be insightful from a technical analysis standpoint.


Exchange-traded funds (ETFs) function akin to stocks, albeit with a deviation in nomenclature; investors transact in “units” instead of “shares.” These “units” are tradable akin to stocks while also being producible or voidable to meet investor requisites. Our weekly surveillance of the alteration in shares outstanding data keeps tabs on ETFs undergoing noteworthy inflows (representing the creation of numerous new units) or outflows (indicating the destruction of numerous old units). The inception of new units necessitates the acquisition of the ETF’s underlying assets, whereas unit destruction entails the vending of the underlying assets, thereby hinting at how substantial flows can influence the individual components within the ETFs.

Discover which other 9 ETFs encountered noteworthy inflows »

Further Exploration:

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