Duke of Marmalade
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After a bit of Googling, I see that the negative correlation of bonds with equities is accepted wisdom and has itself led to a demand for bonds. But I do think you are massively overrating the syndrome. YTD it has yielded you a 2% kicker compared to say 0% on cash.Besides, can you imagine what a spike in borrowing costs of that order would do to equities?
This helps pass the timeDuke,
Compare the performance of the following two portfolios over the last 40 years -
Portfolio 1 comprised 50% US equities (total market) and 50% cash (3-month T-Bills), rebalanced annually. Annualised return of 7.87%, worst year -17.75%; maximum drawdown -26.83%.
Portfolio 2 comprised 50% US equities (total market) and 50% long-term (30-year) Treasuries, rebalanced annually. Annualised return of 10.68%; worst year -7.26%; maximum drawdown - 20.39%.
So, the portfolio with long-term treasuries had a materially higher return, with lower drawdowns.
Why? Diversification.
Portfolio 1 was 100% correlated with the US stock market. As you said yourself, the correlation between equities and cash is exactly zero. Cash diluted equity risk but provided zero diversification benefit.
Portfolio 2 was only 80% correlated with the US stock market. Replacing cash with long-term treasuries actually created a more efficient portfolio from a risk/reward perspective.
Now, cash may well outperform long-term treasuries over the coming decades (although I personally think that is highly unlikely).
But cash cannot, by definition, diversify an equity portfolio.
With respect Duke, that really is indulging in semantics.I accept that cash does not bring (significant) diversification benefit but that is not because it has zero correlation, it is because it has zero risk
Absolutely. In fact, I think there may have been a modestly positive correlation between stocks and bonds over the full time period.The yellow line is the rolling 5 yr correlation of US bond returns and equity returns over the last 40 years. It can be seen that for the first (inflationary) period the correlation is positive (a bad thing) but in the low inflation of recent times the correlation has indeed been negative (a good thing). Overall it looks around zero correlation over the 40 year period. But zero correlation can still give significant diversification benefit.
I concede you have won the diversification argument. But still I can see no justification for investing in bonds at negative yields.With respect Duke, that really is indulging in semantics.
Adding cash to a portfolio of stocks in Portfolio 1 didn't add any diversification benefit because the overall portfolio was at all times 100% correlated to the US stock market. Cash cannot "respond" (positively or negatively) to stock market movements.
Absolutely. In fact, I think there may have been a modestly positive correlation between stocks and bonds over the full time period.
However, the correlation turned sharply negative at the most opportune times (2000, 2008, last month).
Ran figures for Global Bonds and MSCI All Country which European investors may use a bit more. Equities still lag behind bonds over the last 20 years. Investment period is a lot shorter than the S&P500 stats put up previously
View attachment 4416
Am i missing something here? I thought equities have out-performed all other asset classes over almost any reasonably long-term time frame?
You thought wrong. That's the key takeaway from this thread.I thought equities have out-performed all other asset classes over almost any reasonably long-term time frame?
You thought wrong. That's the key takeaway from this thread.
I would have thought that 20 years was a "reasonably long-time frame".Equities “have out-performed all other asset classes over almost any reasonably long-term time frame”...we’ve seen a period where that hasn’t been the case...but note the use of the term “almost any”.
Or they might fall.They might do 6% p.a. or they might go sideways.
Bond yields fell (from historically low levels) during the most recent stock market correction. I can't see any basis for your assertion that bonds cannot diversify an equity portfolio going forward.I will repeat again what has not yet been refuted or accepted by others: historically bonds have provided a useful and rewarding diversification in a balanced retail portfolio. However, at current (artificial yields) they can't possibly fulfil that role from this point.
I would have thought that 20 years was a "reasonably long-time frame".
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