NEW YORK (

TheStreet

) -- Don Dion posts his current insights on the stock, bond, commodity and currency markets in his

RealMoney

blog, anticipating which ETFs will be in play next.

Here are three of his blog posts from the past week:

A Defense ETF Gets a Lift

Published 10/20/2010 10:14 a.m. EDT

Both

Boeing

(BA) - Get Report

and

United Technologies

, bellwethers of the aerospace and defense industry, reported strong results this morning, indicating that defense could be on the rise.

Boeing's Chief Executive Jim McNerney noted the "continued strong performance of our commercial production and services programs and the ability of our defense businesses to produce solid results in a challenging environment." United Technologies Chairman and Chief Executive Louis Chenevert noted that "commercial aerospace aftermarket orders have rebounded nicely."

Boeing and United Technologies share something else in common: They are the top two components in the

iShares Dow Jones US Aerospace & Defense ETF

(ITA) - Get Report

, together comprising more than 16% of the underlying portfolio. Strong earnings from the pair should help lift other ITA holdings, such as

General Dynamics

(GD) - Get Report

and

Lockheed Martin

(LMT) - Get Report

higher during trading today, making ITA a good short-term play for investors looking to capture the momentum from this morning's earnings.

> > Bull or Bear? Vote in Our Poll

For longer-term investors, ITA appears to have promise. Earnings reports from top components reflect strengthening in the sector and a brighter outlook ahead. ITA has already been strong in recent months, rising more than 9% in the three-month period ending Oct. 19. Given its momentum and positive outlook, ITA could be a strong investment for the months ahead.

At the time of publication, Dion Money Management had no positions in stocks mentioned.

A Tech ETF Absent Apple

Published 10/19/2010 7:12 a.m. EDT

Looking for exposure to the better-than-expected

Google

(GOOG) - Get Report

earnings while avoiding the pull of the worse-than-expected

Apple

(AAPL) - Get Report

earnings? Exchange-traded fund investors should turn to the

First Trust Internet ETF

(FDN) - Get Report

in the days ahead.

Rather than focusing on computer titans like Apple and

IBM

(IBM) - Get Report

, FDN tracks a portfolio of firms that draw at least 50% of their revenue from online businesses. Top FDN holdings include Google,

Amazon

(AMZN) - Get Report

,

eBay

(EBAY) - Get Report

and

Salesforce.com

(CRM) - Get Report

. Many of FDN's underlying components are Web sites that allow consumers to compare prices and find the best deals, so I continue to feel confident that FDN will be a good play for the holiday season.

While Apple may not have beat expectations in the third quarter, two factors could easily turn the tide. With the holiday season in sight, sales of the iPad should pick up. Another positive factor is that Apple will be offering the iPad for

Verizon

(VZ) - Get Report

users in the months ahead, opening up the iPad to a whole new audience.

Even though FDN doesn't contain Apple, top components could still benefit from increased sales of the iPad in the months ahead. One of the primary functions of the iPad is to connect users to the Internet. Once there, a new flood of consumers will be surfing the sites in FDN's portfolio.

FDN is a solid, longer-term tech play that shouldn't feel the sting from Apple's failings during Tuesday's session. There's still plenty of time to buy shares ahead of the holidays and hold FDN as a long-term play in a well-balanced portfolio.

At the time of publication, Dion Money Management owned FDN.

Single-Commodity ETFs Looking Risky

Published 10/18/2010 12:50 p.m. EDT

As demand for commodities has soared in recent sessions, bubbles and disconnections are beginning to form in funds that track futures contracts rather than equities. Last week, I

discussed

the case of the

iPath Dow Jones UBS Natural Gas Total Return Subindex ETN

(GAZ) - Get Report

, and it isn't the only fund in bubble mode.

Take the case of the popular

PowerShares DB Crude Oil Double Short ETN

(DTO) - Get Report

, which has been trading at a small yet significant premium to net asset value during the last month. During the one-month period ending Oct. 15, DTO's market price fell 12.3% while DTO's market value fell just 11.5%.

When Barclays, manager of the

iPath DJ-UBS Platinum Trust Sub-Index ETN

(PGM) - Get Report

also caused a disconnect when the firm decided to halt the creation of new shares as investors awaited more news regarding position limits from the Commodities Futures Trading Commission. Year to date, PGM's market value has risen just 3.81% while PGM's underlying value rose more than 13%.

As I've mentioned in previous blogs, pricing discrepancies, bubbles and disconnections between market value and NAV undermine the whole system that the ETF universe is built upon. When an investor buys a fund, they expect it to track the returns of an underlying index. By not tracking their underlying index or NAV, funds like GAZ, DTO and PGM break the implicit promise that fund managers make to investors.

As the CFTC rules become more and more clear as the Dodd-Frank Act is hashed out and implemented, perhaps many of these funds will fall back in line. In the meantime, you're going to want to stay away from single commodity funds where you can't be sure what you're going to get.

That doesn't mean that ETF commodity investors don't have choices. The futures-backed

PowerShares Agriculture ETF

(DBA) - Get Report

has stayed on track better than many fellow commodity funds. Since DBA tracks a basket of underlying commodity futures contracts, the fund itself is less susceptible to position limits placed on a single commodity.

If you'd really like to avoid futures-backed commodities funds altogether, there's always the highly liquid

Market Vectors Agribusiness ETF

(MOO) - Get Report

, which contains the top global firms in the agribusiness sector. Top holdings include

Deere

(DE) - Get Report

,

Mosaic

(MOS) - Get Report

, Wilmar International and

Monsanto

(MON)

.

At the time of publication, Dion Money Management was long DBA.

A special note from Don: Put simply, I want to help you profit from ETFs.

You don't have to be an expert trader -- there are potential profits for investors at every level. And I think there's no better way to jump into the world of ETFs than through my brand-new service,

TheStreet ETF Action by Don Dion

.

Membership is limited, so click here to get in on the action!

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Don Dion is president and founder of

Dion Money Management

, a fee-based investment advisory firm to affluent individuals, families and nonprofit organizations, where he is responsible for setting investment policy, creating custom portfolios and overseeing the performance of client accounts. Founded in 1996 and based in Williamstown, Mass., Dion Money Management manages assets for clients in 49 states and 11 countries. Dion is a licensed attorney in Massachusetts and Maine and has more than 25 years' experience working in the financial markets, having founded and run two publicly traded companies before establishing Dion Money Management.

Dion also is publisher of the Fidelity Independent Adviser family of newsletters, which provides to a broad range of investors his commentary on the financial markets, with a specific emphasis on mutual funds and exchange-traded funds. With more than 100,000 subscribers in the U.S. and 29 other countries, Fidelity Independent Adviser publishes six monthly newsletters and three weekly newsletters. Its flagship publication, Fidelity Independent Adviser, has been published monthly for 11 years and reaches 40,000 subscribers.