If you are in the market for new investment ideas this month, then it could pay to listen to what Bell Potter is saying.
The broker has been busy updating its core portfolio, highlighting three key themes that it is focusing on. These are:
1) Resources and the global capex cycle 2) Inflation and rate cycle beneficiaries 3) Non-cyclical growth with strong competitive positions.
With that in mind, let's look at three ASX 200 shares that it rates as best buys:

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Computershare Ltd (ASX: CPU)
This share registry company could be an ASX 200 share to buy in June according to Bell Potter.
The broker believes it is well-placed to benefit from interest rates staying higher for longer. It explains:
Computershare offers high-quality, defensive exposure to a "higher for longer" global rate environment through its margin income franchise, layered with cyclical upside from accelerating corporate action and IPO activity. Tokenisation is priced as a structural risk but increasingly looks like an opportunity CPU is positioned to capture.
Mineral Resources Ltd (ASX: MIN)
Another ASX 200 share that has been named as a best buy is mining and mining services company Mineral Resources.
Bell Potter likes the company due to its exposure to a tightening lithium market. It also highlights that there are a number of potential catalysts for a re-rating. It said:
Mineral Resources offers leveraged exposure to a tightening lithium market through ramping volumes at Wodgina, Mt Marion, and Bald Hill, with spodumene spot prices sitting well above the long-term assumptions embedded in the current share price. The investment case rests on a three-way path to re-rating: volume growth, consensus catch-up on earnings, and balance-sheet repair through FY27–FY28 de-gearing.
Worley Ltd (ASX: WOR)
A third ASX 200 share that gets the thumbs up from Bell Potter is global professional services company Worley.
The broker believes the company is well-placed to deliver strong earnings growth over the remainder of the decade. It believes this could support a re-rating of its shares. Bell Potter explains:
Worley is set to enter a period of stronger demand for its services driven by rising commodity prices and a structural shift toward energy security, with the recent investor day flagging double-digit EBITA CAGR to FY30 versus consensus at just 3%. Depressed valuation, low earnings expectations, and disciplined capital allocation create a positive risk/reward where investors should benefit from both EPS upgrades and a P/E re-rate.