The Satrix RAFI is changing its index. The good, middling and the bad

Simon BrownETF Blog, Latest

It was 2008 and, as world markets were collapsing (20% down on all major indices in a single week in October), I was doing a road show with Satrix CEO Mike Brown for their new Satrix RAFI ETF*.

ETFs locally were still a novelty, but this one was even more so as it was a smart beta ETF. Smart beta would become very ‘exciting’ before pretty much disappearing from the scene. But the RAFI has endured, and now it is being changed.

What RAFI actually is

RAFI stands for Research Affiliates Fundamental Index and came out of a 2005 paper by Arnott, Hsu & Moore titled “Fundamental Indexation”, published in the Financial Analysts Journal.

Their idea was simple and compelling. Share prices have errors in pricing, and a market cap weighted index would then be buying more of the overpriced and less of the cheaper shares. The fix would be to rather weight companies by ‘economic footprint’ using fundamentals such as sales, cash flow, book value and dividends.

Now, there have been many rebuttals of this theory, but I bought some Satrix RAFI in the IPO and it has done very well, easily beating the Top40, which is exactly what it wanted to do.

SATRAF vs. STX40 January 2010 - August 2026

SATRAF vs. STX40 January 2010 – August 2026

ANNUALISED STXRAF STX40 (TOP 40) RAFI ADVANTAGE
1 year 39.41% 27.17% +12.24%
3 years 20.03% 18.82% +1.21%
5 years 17.50% 15.56% +1.94%
10 years 12.50% 11.76% +0.74%
What is changing

Satrix is now changing the underlying index they use for the ETF from the FTSE/JSE RAFI 40 (J260) to the RAFI Fundamental Select South Africa 40. The change was approved by holders by ballot and is already in effect.

The changes look just fine. In fact, some make a lot of sense, for example using dividends and share buybacks rather than just dividends. But some changes may be less great.

FTSE/JSE RAFI 40 (J260) — OLD RAFI FUNDAMENTAL SELECT SA 40 — NEW
Universe FTSE/JSE All Share RAFI Global Equity Investable Universe, SA-traded
Index owner FTSE Russell / JSE RAFI Indices LLC
Calculation agent FTSE Russell Solactive AG
Sales measure Raw 5-yr average sales Sales × equity-to-assets (leverage penalty)
Cash flow Operating CF, 5-yr avg Operating CF + R&D, 5-yr avg
Shareholder returns Dividends only Dividends + buybacks
Book value Last year-end book Book + research capital (intangibles)
Rebalance Once a year, single date Four tranches, one rebalanced each quarter
Cap 10% 10%
TER / TIC 0.50% / 0.58% 0.50% / 0.58% (unchanged)
Concentration goes up

The Top10 was 58.0%, it will now be 65.5%, with the top 4 (BHP Group, Glencore, Anglo American and British American Tobacco) at 38.5%. That’s a lot.

The gold miners are gone

The change also markedly down weights gold miners. Sibanye Stillwater, Gold Fields and AngloGold Ashanti were around 20%; now none are even in the top 10. If the precious metal miner tilt was important to you, note that it is now pretty much gone.

And then the biggie: performance

The table below is from Satrix’s workings for the period ending September 2025, and the RAFI wins, but only just and only over the long term.

TO SEP 2025 NEW (SIMULATED) OLD (LIVE) GAP
YTD 25.04% 40.89% −15.9%
1 year 18.46% 34.08% −15.6%
3 years 16.01% 21.96% −6.0%
5 years 20.17% 22.41% −2.2%
10 years 13.96% 13.27% +0.7%

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So now what?

I think the changes to the methodology are good, concentration is a middling concern and weaker returns a worry. I hold, it is very small in my portfolio (truthfully, probably too small to have any real impact) and I will continue to hold as I monitor how it does over time.

Simon Brown

* I hold ungeared positions.

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