Category Archives: Portfolio Management

Problems in Simulating Investment Returns

Simulating hypothetical future investment returns can be important for investors trying to make decisions regarding the riskiness of various investing strategies.  The trouble is that it is difficult to do right, and I rarely see it done right.  Here are some of the trouble spots: 1) You need to get the correlations right across assets. […]

Book Review: Berkshire Beyond Buffett

It’s time to change what Warren Buffett supposedly said about his mentors: “I’m 85% Ben Graham, and 15% Phil Fisher.” For those who don’t know, Ben Graham is regarded to be the father of value investing, and Phil Fisher the father of growth investing.  Trouble is, Warren Buffett changed in his career such that this […]

Risk Tolerance — The Ability to Deal with Loss

No one knows their financial “risk tolerance” outside of the context of losing money.  Part of the trouble is that risk and return are often described in the same breath as if they are inseparable, when they are more weakly related than most think, and certainly not linear. Surveys, no matter how well-intentioned or -designed […]

Mantra: Interest Rates Have to Rise, Interest Rates Have to…

I thought of structuring this post like a fictional story, but I couldn’t figure out how to make it good enough for publication.  Well, truth is often stranger than fiction, so have a look at this Bloomberg article pointing at a 37% loss in the ProShares UltraShort 20+ Year Treasury (TBT). A few points to start […]

Even with Good Managers, Volatility Matters

This is another episode in my continuing saga on dollar-weighted returns. We eat dollar-weighted returns.  Dollar-weighted returns are the returns investors actually receive in a open-end mutual fund or an ETF, which includes their timing decisions, as opposed to the way that performance statistics are ordinarily stated, which assumes that investors buy-and-hold. In order for […]