Just opened an ISA? Here are the best shares to buy in March according to the pros

Here are five of the most popular shares to buy right now along with two top stock picks from the experts for ISA investors seeking new ideas.

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With the ISA deadline of 5 April fast approaching, investors are busy hunting down the best shares to buy this month. And looking at the latest buy and sell data from Interactive Investor, it seems some of the most popular stocks among retail investors right now include:

  1. Legal & General Group
  2. Rolls-Royce
  3. Barclays
  4. Taylor Wimpey
  5. Aviva

But according to the pros, there could be even better under-the-radar opportunities to capitalise on.

Peel Hunt: 4imprint Group

Among the favourite stock picks from the analysts at Peel Hunt, 4imprint Group (LSE:FOUR) stands out for its fairly aggressive price target of 5,300p.

Compared to where the shares are trading today, this forecast suggests buying shares right now could generate a roughly 55% return by this time next year. And digging a little deeper, it’s not hard to see why the experts are getting excited.

Apart from having a debt-free, fortress-like balance sheet, the company was able to essentially maintain sales and profit margins throughout a tough cyclical downturn within the promotional merchandise market.

Flat revenue and earnings are obviously disappointing compared to the firm’s earlier track record of delivering double-digit growth. And it’s why 4imprint shares have subsequently suffered, falling close to 30% since the start of 2025.

However, with the challenges surrounding this business ultimately being cyclical, the door seems to be open for a powerful recovery once market conditions improve.

Of course, the exact recovery timeline remains a mystery. The outlook for 2026 remains fairly subdued courtesy of continued uncertainty within the business environment both in the UK and, critically, 4imprint’s core US market.

Nevertheless, with such a substantial discount on offer, investors may be well-served to take a closer look.

Mark Rogers: Shopify

Another top pick comes from our very own Director of Investing, Mark Rogers.

Earlier this month, he highlighted three shares to consider buying, which included Shopify (NASDAQ:SHOP) in a move to capitalise on all the recent US stock market volatility.

The e-commerce giant was hit hard during the recent tech sell-off and is down close to 22% since the start of 2026.

Yet the underlying business remains largely intact, giving investors a potentially far more attractive entry point into a business that’s still growing revenue by 31% in its latest quarterly results.

And with AI seemingly acting as a tailwind, the firm’s already impressive 30% US market share could just be the tip of the iceberg, especially as management begins executing a more aggressive international expansion strategy.

Obviously, Shopify is far from a risk-free investment.

An economic downturn will likely result in lower online spending, creating an unwanted headwind for this business. Even more so, considering most Shopify merchants are small and medium-sized enterprises that are far more sensitive to the macroeconomic landscape — a risk that investors must seriously consider.

But with a long-term-focused management team with an impressive knack for execution, Shopify could be worth mulling over. And it’s not the only company on Mark’s buy list this month…

“Best Buys Now” Pick #2:

Redacted

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Zaven Boyrazian has positions in Shopify. The Motley Fool UK has recommended 4imprint Group Plc, Barclays Plc, Rolls-Royce Plc, and Shopify. Views expressed on the companies mentioned in this article are those of the writer and therefore may differ from the official recommendations we make in our subscription services such as Share Advisor, Hidden Winners and Pro. Here at The Motley Fool we believe that considering a diverse range of insights makes us better investors.

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