I haven’t bought anything for my Stocks and Shares ISA yet in June, but I’m eyeing up a few opportunities. And once again, I’m hearing legendary investor Peter Lynch’s famous words: “The best stock to buy is the one you already own“.
In other words, I’ve already done the hard work of researching the stock. And if it still looks attractive to me, why not buy more of it rather than something new and shiny?
With this in mind, here are two shares that I’m thinking about adding to in June.
Digital bank
Nu Holdings (NYSE:NU) is the company behind Nubank, the largest digital bank in Latin America. The company has been growing like bamboo in recent years, with revenue crossing the $5bn mark for the first time in Q1.
One thing I like about this disruptive fintech firm is that it’s already very profitable. In Q1, net income jumped 41% to $871m, compounding at an annualised rate of 84% since 2022.
Meanwhile, the return on equity (ROE) came in at 29%, which is roughly double what traditional UK banks generate. And with over 135m customers now using the platform across Brazil, Mexico and Colombia, further profitable growth looks very likely.
Despite this progress, the stock has dropped 35% since late January. The culprit is high consumer debt in Brazil, the lender’s largest market. If this gets any worse, it could act as a brake on Nu’s growth.
Taking a long-term view though, this doesn’t worry me too much. One reason is that the fintech is growing strongly in Mexico and Colombia, where management estimates it has only captured around 1% of the gross consumer profit pool.
Mexico is a massive opportunity— [the] market has a long runway ahead, and we are scaling into it.
Nu Holdings.
Moreover, the company is entering the US, which has more than 65m Hispanic and Latino residents. The firm notes that despite the highly competitive nature of US banking, a massive segment of this population remains under-served.
There’s also the massive cross-border money transfer market (particularly remittances from Mexico to the US). Given these opportunities (and others to come), I think the firm’s long-term growth story extends beyond Brazil.
After the sharp pullback, the stock’s trading at a reasonable 18 times forward earnings. And the company has just announced a $1bn share buyback, which makes sense given the valuation.
Writing this, I think I’ve just talked myself into buying more shares around $12!
FTSE 100 software firm
The second stock tempting me is Sage Group (LSE:SGE), which has slumped 34% since early 2025.
The reason that investors have soured on the company — which provides finance, payroll and HR software for small and mid-sized businesses — is because of AI disruption fears. If these prove to be warranted, this will likely prove a lousy buy.
The thing is though, Sage itself is embedding autonomous AI agents into its customers’ core workflows, deepening its competitive position in the process. That’s because the accuracy and compliance needed for accounting is non-negotiable.
In H1 2026, underlying total revenue in North America rose by 14% to £616m, with strong adoption of AI-powered functionality. I see no evidence of disruption.
So, with the stock trading cheaply at 15 times forward earnings, I’m considering a top-up.
Should you invest £5,000 in Sage Group Plc right now?
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Ben McPoland owns shares in Nu Holdings and Sage.
