Featured and Latest Posts

What Does a Good Financial Decision Look Like?
Practical Investing Kieran Cook Practical Investing Kieran Cook

What Does a Good Financial Decision Look Like?

Good financial decisions aren’t about predicting the future—they’re about following a sound process today.

In investing, outcomes are noisy. Short-term performance often reflects randomness, not skill. Yet fund managers continue to pitch five-year track records as if they prove anything. They don’t.

As Ken French puts it, a five-year chart ‘tells you nothing’. The real skill lies in filtering out the noise—evaluating strategy, incentives, costs, and behavioural fit.

Don’t chase what worked recently. Stick with what works reliably.

Read More
Home Bias in Asset Allocation: A Rational Case for (Some) UK Overexposure?
Practical Investing Kieran Cook Practical Investing Kieran Cook

Home Bias in Asset Allocation: A Rational Case for (Some) UK Overexposure?

Home bias—the tendency to favour domestic assets—is one of the most persistent patterns in investor behaviour. For UK investors, that means holding more in UK equities, gilts, property and sterling assets than global market capitalisation would suggest. And whilst much of this is driven by familiarity or inertia, a blanket rejection of UK exposure may go too far.

This post examines the case for a modest UK overweight, exploring five rational reasons why some home bias may actually be optimal. From currency matching and tax efficiency to relative valuations and implementation simplicity, there are good reasons for UK investors to hold 15–25% of their equity allocation at home—deliberately, not by default.

Read More
Is Factor Investing Worthwhile Pursuing? Practically speaking?
Practical Investing Kieran Cook Practical Investing Kieran Cook

Is Factor Investing Worthwhile Pursuing? Practically speaking?

Factor investing promises a scientific edge—systematic returns from tilting towards characteristics like value, size, or momentum. But that promise is under review. Economist Andrew Chen, co-creator of the Open Source Asset Pricing project, casts doubt on the viability of many factors, especially for retail investors.

Chen argues that much of the language around ‘factors’ is imprecise. Many so-called factors are merely statistical predictors, not true sources of systematic return. Even when predictors are statistically sound, their effectiveness often fades after publication—and real-world trading costs can erase any remaining edge.

The takeaway? Whilst a small number of robust, low-cost, multi-factor strategies—like those from Dimensional, AQR, or Vanguard—may still offer modest rewards, the broader field of factor investing appears less fertile than it once seemed. For most investors, the global market index remains a formidable benchmark.

Read More
Can Active Fund Managers Protect the Downside?
Practical Investing Kieran Cook Practical Investing Kieran Cook

Can Active Fund Managers Protect the Downside?

Active managers often claim that they earn their keep in downturns—sidestepping crashes, rotating into resilient sectors, or holding cash whilst passive investors suffer. But when we test that promise across the bear markets of 2000–2002, 2008, 2011, 2018, 2020 and 2022, the data tell a different story.

Using SPIVA scorecards and academic research from Cochrane, Blake, Barras and others, this post shows that active fund managers not only fail to protect on the downside—they often underperform more severely. Across US style boxes and global markets, the pattern is consistent: the ‘safe hands’ of active management rarely deliver when it matters most.

If you're relying on stockpickers for crisis protection, it may be time to rethink that strategy.

Read More