Knowing which ASX 200 shares to avoid can be just as important as knowing which ones to buy when aiming to maximise portfolio returns.
So, with that in mind, let's see which shares analysts are tipping as sells this week, courtesy of The Bull.
Here's what they are bearish on:
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Commonwealth Bank of Australia (ASX: CBA)
Morgans has named this big four bank as an ASX 200 share to sell this week.
This bearish stance is based on valuation grounds, with the broker suggesting that better value can be found elsewhere in the market. It explains:
CBA is Australia's strongest major bank, with a leading retail franchise and consistent profitability. However, the market fully recognises these strengths. The shares were recently trading at a significant premium, leaving limited upside as interest rate benefits fade and competition increases.
While the business remains high quality, future returns are likely to be more modest, in our view. With the company's valuation pricing in a lot of good news, we see better value elsewhere, supporting a sell view.
Karoon Energy Ltd (ASX: KAR)
Medallion Financial Group has named this energy producer as a sell.
It believes investors should be locking in profits after a strong run following a surge in oil prices due to the conflict in the Middle East. It said:
Karoon is an oil and gas explorer and producer. It has assets in Australia, the United States and Brazil. Revenue from ordinary activities was down 19 per cent in full year 2025 when compared to the prior corresponding period. Net profit after tax was down 2 per cent. The shares have risen from $1.54 on February 27 to trade at $2.16 on April 23.
In our view, Karoon has benefited from increasing crude oil prices since the conflict in the Middle East started on February 28. We believe these sorts of opportunities should be taken and we have locked in profits on Karoon.
Santos Ltd (ASX: STO)
The team at Medallion Financial Group also thinks investors should be doing the same with Santos shares following a similarly strong gain.
It has named the energy giant as a sell, especially given uncertain energy prices. Medallion said:
Santos is a global energy company. It has operations across Australia, Papua New Guinea, Timor-Leste and the United States. Total revenue from ordinary activities fell by 8 per cent in full year 2025 when compared to the prior corresponding period. The fall in revenue was due to lower realised prices. Net profit after tax was down 33 per cent. The share price has risen from $5.92 on January 7 to trade at $7.61 on April 23. We would be inclined to lock in gains given volatile and uncertain energy prices emanating from the conflict in the Middle East.
