December 2018 update: the MoneyWeek model investment trust portfolio doubles its money

Our investment trust portfolio has been a great success. Merryn Somerset Webb assesses the outlook.

Six years ago we thought it would be interesting to see if we were as good at choosing whole portfolios ourselves as we are at carping about other people's choices. So we started a small investment trust portfolio, the idea being to choose six that between them provided a good level of high-quality diversification; to check on them every six months but to trade them as rarely as possible; and to hope for the best.

I haven't quite managed the six-month bit. But the rest has gone pretty well. We've made only three changes to the portfolio over the last six years. It now consists of Scottish Mortgage, Personal Assets, Caledonia, Temple Bar, Law Debenture and RIT, and our total return now sits at just over 116%. That number assumes that all investors are regularly rebalancing so they have equal amounts of all six, and it doesn't take account of the transaction costs of doing so, but it nonetheless compares well with the 64.5% return from the FTSE All-Share and the 91% return from the MSCI World index over the same period.

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Investment trustLSE:tickerOne-yeartotal returnFive-yeartotal returnDividendyieldPremium/discount
Caledonia InvestmentsCLDN3.6%68.5%2.1%-22.2%
Personal AssetsPNL-1.3%32.9%1.4%1.0%
Scottish MortgageSMT12.4%155.7%0.6%-0.6%
RIT CapitalRCP0.8%69.9%1.7%4.1%
Law Debenture CorpLWDB-8.5%21.3%3.3%-11.7%
Temple BarTMPL-8.6%12.1%3.9%-5.0%
Merryn Somerset Webb

Merryn Somerset Webb started her career in Tokyo at public broadcaster NHK before becoming a Japanese equity broker at what was then Warburgs. She went on to work at SBC and UBS without moving from her desk in Kamiyacho (it was the age of mergers).

After five years in Japan she returned to work in the UK at Paribas. This soon became BNP Paribas. Again, no desk move was required. On leaving the City, Merryn helped The Week magazine with its City pages before becoming the launch editor of MoneyWeek in 2000 and taking on columns first in the Sunday Times and then in 2009 in the Financial Times

Twenty years on, MoneyWeek is the best-selling financial magazine in the UK. Merryn was its Editor in Chief until 2022. She is now a senior columnist at Bloomberg and host of the Merryn Talks Money podcast -  but still writes for Moneyweek monthly. 

Merryn is also is a non executive director of two investment trusts – BlackRock Throgmorton, and the Murray Income Investment Trust.