I think ETFs in less-liquid asset classes add risks that aren't present
in the broad-market ones. The whole creation-redemption process is a
bit of a black box as it is and intuitively, must do better when the
underlying investments have readily-ascertainable values, and can be
traded at low cost. There seems potential for a lot of slop when you
get into something like an ETF holding high-yield municipal bonds, many
of which just don't trade all that often (relatively speaking).
Rick Ferri wrote an interesting post about this about a year ago,
entitled "Why we don't buy corporate bond ETFs". Mainly he's talking
about junk bonds (which he gives great examples for), and the example
for the more liquid investment-grade corporates don't show nearly the
problem that the junk bonds had. Presumably the even more thinly
traded HY munis would be even worse.
Here's a link:
I just pulled up a holdings list for one of the HY Muni ETFs and put a
CUSIP for one of the top holdings into EMMA. The recent trading history
is very light so it isn't much to go on, but there was a 350+ basis
point difference between a recent "customer sold" and "customer bought"
price - by recent I mean within three days. On a single trade the
spread looked to be about 35 bps. These are not small numbers.
The actively (or, perhaps semi-actively) managed ETFs may do better,
but they are pretty new, so we won't really know for a while. But this
kind of thing is one of the reasons, for example, why Pimco's junk bond
ETFs may be better than the pure index-driven ones -- they don't need
to worry about tracking error and can, theoretically, avoid some of
those spread issues. Whether that works in practice, we'll just have
to wait and see.
A question I posed to one of the wholesalers who rang me up when these
came out was: how does your ETF structure and market-making process
deal with the peculiarities of this market - especially when munis get
rattled? Even just coming up with bond values to determine NAV has some
wiggle room in it. He didn't have an answer.
One of the reasons that there may be some particularly great values in
CEFs when there are market rattles - when the NAV is that uncertain,
and the underlying securities are highly illiquid, the price mechanism
breaks down and therein may lie some great opportunities. That said, I
don't generally mess around with that - too much uncertainty and
liquidity risk -- if I can get a great deal on something because it's
trading absurdly cheaply, then I may be in trouble on the other side of
that trade when I need to get back out of it.
--
David S. Meyers, CFP®
http://www.MeyersMoney.com
disclaimer: discussions in misc.invest.financial-plan are for
educational purposes only and should not be construed as financial
advice. For personal financial advice, please consult directly with a
professional.