ROI; Why We're All J.P. Morgan Now; Arends: The entire world of investing, including your 401(k), is now being run just like J.P. Morgan's "synthetic credit portfolio."

The drama unfolding at J.P. Morgan Chase is stunning. Gripping. And oh so predictable. If you think this is just a story about Wall Street greed and folly, and has nothing to do with you, think again. We are all J.P. Morgan now.

Borrowing Against a Portfolio Leaves Little Margin for Error

Why a 'Balanced' Portfolio May Not Work; Arends: That 60/40 portfolio of stocks and bonds your adviser is pushing might not work.

New fund categories are not automatic buys; Commentary: Research firms provide data, not investment tips

BOSTON (MarketWatch) — Well over a decade ago, I got a note from an investor who said he did not understand how average investors were supposed to keep up with “recommended behavior for fund investors.”

Muni Buyers Gain Peace of Mind, But Will Likely Lose Some Yield

Emerging Markets: The Allure of Bonds; Advisers suggest investors look beyond stocks

Beware 'Leveraged' ETFs

Despite years of warnings about the dangers of "leveraged" exchange-traded mutual funds, many small investors—and, apparently, some investment professionals—may still not be getting the message.

Fund directors owe shareholders more; Commentary: Investors deserve proactive, decisive portfolio oversight

How to handle ETFs’ double-edged sword; Commentary: Investor or trader, don’t let your discipline slip

SAN FRANCISCO (MarketWatch) — Exchange-traded funds open the door to just about every investment sector and style. They’re readily available anywhere, anytime, and they’re cheap.

How to Invest in Europe; Investing pros say the best strategy is avoid Southern European nations and stick to companies that make much of their money overseas.

Beware 'Leveraged' ETFs

Borrowing Against a Portfolio Leaves Little Margin for Error