We have some exciting news to share! The Motley Fool UK has now become The Twelfth Magpie -- an independent, UK-owned company, led by our long-serving UK management team — Mark Rogers, Chris Nials and Heather Adlington. In practical terms, it’s the same team you know, now fully focused on serving our UK readers and members.

Just as importantly, our approach remains unchanged: long-term, jargon-free, and on your side. This site is our new home, and there will be extra tweaks made across the coming few days as we settle in. So if anything looks a little off, please bear with us!

The content of this article was relevant at the time of publishing. Circumstances change continuously and caution should therefore be exercised when relying upon any content contained within this article.

Data-driven investing

You have an investment strategy of some sort. But is it succeeding — and how do you know? Even if you’ve already been investing for some years, the information you need will still be available.

Man thinking about artificial intelligence investing algorithms

Image source: Getty Images.

You’re reading a free article with opinions that may differ from The Twelfth Magpie’s Premium Investing Services. Become a member today to get instant access to our top analyst recommendations, in-depth research, investing resources, and more. Learn more, and get a free 'Best Buy Now' stock!.

Next year, I turn 70.

Not entirely coincidentally, this year has seen something of a focus on fitness.

I bought a Fitbit, and started tracking and targeting my daily step counts. Fairly regularly, I do a particular coastal walk a few minutes’ drive away, timing myself over a specific route. And recently, I’ve joined an informal running group, timing myself over a 5K distance.

Central to all these activities — well, apart from doing them in the first place — has been a process of data collection and analytics.

Fitbit makes it easy: you can download your personal statistics in spreadsheet format, which makes charting your progress very straightforward. My regular walks have become faster, and easier. They may yet turn into runs. And looking at the 5K data, progress is discernible.

It’s what I do. It’s how I think. And it’s how I approach targeted improvements in other areas — such as our household’s electricity consumption, for instance.

Data driven

You won’t be surprised to learn that I take the same data-driven approach to investing. Indeed, readers with long memories will perhaps remember me mentioning spreadsheets and charts in previous columns.

And it’s an approach I’ve seen taken by other investors, too — some with multi-decade investing experience behind them.

What do they track? What do I track? Whatever we want, in short. Whatever suits our own investment circumstances and strategies, in other words. That’s the beauty of a spreadsheet-driven approach, as opposed to a tool such as Microsoft Money, or one of the proprietary portfolio-tracking tools that are out there.

Nor is the use of the word ‘strategies’ in the paragraph above without significance. I firmly believe that investing should be strategy-directed, and have some of goal in mind. In which case, it is only rational to measure progress towards achieving that goal.

Should you buy Rolls Royce shares today?

Before you decide, please take a moment to review this report first. Despite ongoing uncertainties from US tariffs to global conflicts, Mark Rogers and his team believe many UK shares still trade at substantial discounts, offering savvy investors plenty of potential opportunities to learn about.

That’s why this could be an ideal time to secure this valuable research – Mark’s analysts have scoured the markets to reveal 5 of his favourite long-term ‘Buys’. Please, don’t make any big decisions before seeing them.

Data that I capture

It’s no secret that these days I’m an income investor. And so, since 2005, my primary spreadsheet has been income-focused, measuring my progress in building up an investment income from a portfolio of individual shares.

The first ‘tab’ in the spreadsheet records progress within a given year: total new cash added, total dividends received, net share purchases, cash at year-end, and some columns of totals designed to inform a number of yield calculations: equity valuation, total new cash, and total bought cost.

Fairly obviously, then, I’m capturing yield as a percentage of equity valuation, yield as a percentage of new cash invested, and yield as a percentage of bought cost. Another column — and probably the least important one — captures profit against the year-end valuation. Finally, a column captures noteworthy comments of the year in question, and I also capture total annual dividend payments by company.

And, as I say, I have all that data and analysis going back to 2005.

A further tab displays and charts the timetabled payments of dividends throughout the year, to aid in planning. Another tab tracks a detailed sectoral breakdown, to aid in maintaining diversification and balance. A further tab records the total portfolio. And a final tab records every transaction, so that I could — if I wished — run a pivot table against it. So far, I’ve never wished to, it has to be said.

Steady as you go

So how am I doing, in terms of investment performance?

Thanks to the spreadsheet, I know. Objectively, not subjectively. Factually, and with real clarity.

Dividend income has increased, year on year. Yield on bought cost is satisfactory. Yield as a percentage of equity valuation fluctuates as capital values fluctuate, but is also satisfactory. And capital values have fluctuated — but then, global financial crises, pandemics, and unexpected national referendum outcomes tend to have that effect.

In other words, steady as you go. I have an investment strategy, and my spreadsheet tells me that it’s working reasonably well.

Other spreadsheets track other aspects of my retirement income planning. Overall, I’m holding the planned course.

Equities still win out

But should you even bother? Granted, retail investors are waking up to these opportunities. But from what I’ve read, it’s wealthier, more sophisticated investors, often with prior bond market experience.

Better by far, I think, is to stick with equities. Plenty of UK blue-chips yield more than bonds and gilts, and also offer capital upside.

Last time I looked, the FTSE 100 was trading on a price-to-earnings (P/E) ratio of 13, and the FTSE All-Share a P/E of 14. America’s S&P 500? 20. The broader Russell 2000? 25.

I know where I see the greater prospect of an upwards re-rating.

Why not?

Perhaps you already have such a spreadsheet, designed to suit your own particular needs. I know lots of investors do.

But perhaps you don’t already have a such a spreadsheet — and I know lots of investors don’t.

“It’s too late,” I hear you say. “I started investing several years ago. I’m not sure that I’ve kept all the paperwork.”

No matter: every investing platform that I know of keeps records of investors’ trades — even if they’ve since moved their investments elsewhere. The information is out there, and you can access it, and build your spreadsheet, just as if you’d maintained it right from the start of your investing journey.

Don’t have Microsoft Office? There are alternatives, such as Libre Office. And even a free, online version of Microsoft Excel, maintained by Microsoft.

If the will is there, the means are there. What have you got to lose?

More on Investing Articles

Image of happy young people man and woman in basic clothing thinking and touching chin while looking aside isolated over yellow background
Investing Articles

Here are 3 factors I assess when considering stocks with a high dividend yield

A dividend yield acts like a siren's call to investors, luring them in with cash promises. But is any trouble…

Read more »

Santa Clara offices of NVIDIA
Investing Articles

Down 14% since May, are the glory days over for Nvidia stock?

Could a recent stock price fall be the canary in the mine for what might happen to Nvidia if the…

Read more »

Young female business analyst looking at a graph chart while working from home
Investing Articles

Here’s what the experts said about Rolls-Royce shares 5 years ago…

Five years ago, the consensus view of Rolls-Royce shares was Hold. What does that tell investors looking for the UK’s…

Read more »

Investing Articles

Here’s how much £10,000 put into the FTSE 100 a year ago has earned – with and without dividends

How well has the UK's index of 100 leading shares done over the past 12 months. Our writer digs into…

Read more »

Array of piggy banks in saturated colours on high colour contrast background
Investing Articles

Near 5-year highs, here’s what the experts are saying about the Lloyds share price

Analysts have been steadily raising their Lloyds share price guidance all year, as the bank has been going from strength…

Read more »

Businessman hand stacking up arrow on wooden block cubes
Growth Shares

Near 2010 highs, here’s where the experts think the BP share price could go next

Jon Smith explains why the future looks bright for the BP share price, but flags up its sensitivity to oil…

Read more »

Exterior of BT Group head office - One Braham, London
Investing Articles

Down from a 5-year peak, here’s how high this expert thinks BT shares could soar

This recent analyst upgrade suggests BT shares could climb 50% or more. And although not everyone is so upbeat, targets…

Read more »

UK financial background: share prices and stock graph overlaid on an image of the Union Jack
Investing Articles

With millions to spare, Nick Train is piling into this FTSE 100 stock up 4,300%

A 100-year old investment trust from the FTSE 250 is planning to load up on of this barnstorming FTSE 100…

Read more »