Does Macquarie prefer Rio Tinto or BHP shares?

Should you buy Rio Tinto shares or BHP shares? Here's Macquarie's take.

Key points
  • Over the past year, Rio Tinto shares have outperformed BHP with a 15.8% increase and higher dividends, while BHP shares rose 5.8%.
  • Macquarie explores the potential involvement of Rio Tinto in a merger with Teck Resources, highlighting strategic benefits and possible complexities with its dual-listed structure.
  • Macquarie maintains a neutral rating on both stocks, expecting one to gain modestly and the other to fall over the year ahead.

BHP Group Ltd (ASX: BHP) shares or Rio Tinto Ltd (ASX: RIO) shares?

If you're looking to add one of the S&P/ASX 200 Index (ASX: XJO) mining giants to your investment portfolio, or increase your exposure if you already own shares, which stock should you buy?

We'll take a look at what the analysts at Macquarie Group Ltd (ASX: MQG) have to say on that matter below.

But first, how have the two Aussie miners been tracking?

Female miner uses mobile phone at mine site

Image source: Getty Images

Which ASX 200 mining stock has outperformed?

In early afternoon trade today, BHP shares are down 0.3%, trading for $42.92 each.

Rio Tinto shares are slipping as well, down 0.6% at $131.72 apiece.

Over the past year however, Rio Tinto has outperformed its larger rival. Rio Tinto shares are up 15.8% over 12 months, not including the $5.933 in fully franked dividends the ASX 200 stock has paid out over this time. At the current price, Rio Tinto shares trade on a fully franked trailing dividend yield of 4.50%.

As for BHP, shares in Australia's biggest miner are up a lesser 5.8% over 12 months. BHP also paid out $1.71 in fully franked dividends over the year. At the current price, BHP shares trade on a fully franked trailing dividend yield of 4.0%.

That's a look in the rear view.

Now, here's what Macquarie revealed in a new metals and mining research report, released on Wednesday.

Should you buy Rio Tinto or BHP shares?

Macquarie noted that unlike BHP shares, Rio Tinto shares could be involved in the pending merger between international mining companies Teck Resources and Anglo American.

The broker noted that in the upcoming merger a "management circular named a 'Party X' that approached Teck on a 'nil premium' merger proposal raising questions whether RIO was involved given speculation and recent activist positioning".

As for the implications for Rio Tinto, Macquarie said:

Whilst unclear whether RIO or another miner, any implication that RIO may be involved in M&A is unsurprising given the merits of Fe diversification and Teck's Cu growth.

However, key question may continue on whether RIO's DLC [dual-listed company] structure is prohibitive to conduct M&A, which will garner investor focus.

With the LTD/PLC spread at a 22% premium, we see merits of a DLC collapse should tax risks abate or erode in significance, likely over time.

Macquarie also pointed to the recent outperformance of Rio Tinto shares over BHP shares.

The broker said:

Since October 1, RIO has outperformed BHP by 6%. We believe this has been driven by perceptions of RIO's cost out at the Capital Markets Day counteracted by BHP's iron ore price negotiations. We suspect RIO will focus inwards on improvement before acting inorganically.

As far as Macquarie's preferred stock, the broker has a neutral rating on Rio Tinto shares with a 12-month target price of $124.00 a share. That's 6.2% below the current shares price.

Macquarie also has a neutral rating on BHP shares. But with a 12-month price target of $44.00 a share, that represents a potential upside of 2.4% from current levels.

Neither price target incorporates the upcoming dividends from the ASX 200 mining stocks.

Motley Fool contributor Bernd Struben has no position in any of the stocks mentioned. The Motley Fool Australia's parent company Motley Fool Holdings Inc. has positions in and has recommended Macquarie Group. The Motley Fool Australia has positions in and has recommended Macquarie Group. The Motley Fool Australia has recommended BHP Group. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Scott Phillips.

More on Broker Notes

Young successful engineer, with blueprints, notepad, and digital tablet, observing the project implementation on construction site and in mine.
Broker Notes

Could this ASX uranium developer more than double in value?

This company's African projects are shaping up well.

Read more »

Two work colleagues looking at a laptop and discussing something.
Broker Notes

Buy, hold, sell: Wildcat Resources, Ramsay Health Care, CBA shares

The market is down on Tuesday as experts reveal insights into these three companies.

Read more »

Excited couple celebrating success while looking at smartphone.
Broker Notes

2 ASX 300 shares tipped by brokers to return 16% to 38%

These shares could deliver market-beating returns according to analysts.

Read more »

Woman and man at work looking at data on a tablet at work.
Broker Notes

Buy, hold, sell: Fortescue, Guzman Y Gomez, and Megaport shares

Here's what Morgans is saying about these popular shares.

Read more »

Female scientist working in a laboratory.
Broker Notes

Buy, hold, sell: Mesoblast, Dicker Data, ASX shares

The drug maker is a standout among these companies.

Read more »

A man clenches his fists in excitement as gold coins fall from the sky.
Broker Notes

UBS' top nine ASX large-cap stock picks

Check out the price targets on these major shares.

Read more »

A woman in a red dress holding up a red graph.
Broker Notes

Up more than 1000% over a year, how much more upside does this ASX mining stock have?

This tin project developer has been kicking goals.

Read more »

A close up of a motorcycle's front wheel and body on the open road with another motorcycle rider in the background cruising behind the leading driver.
Broker Notes

This high-dividend ASX small cap could rise more than 50%: Broker

A solid growth strategy has impressed the team from Morgans.

Read more »