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Looking for prime shares to purchase in a Shares and Shares ISA? Listed here are a pair from the FTSE 100 and FTSE 250 to contemplate proper now.
Babcock Worldwide
A vivid outlook for the European defence sector suggests Babcock Worldwide (LSE:BAB) might stay one of many FTSE 100’s star performers.
Up 64% over the previous 12 months, the enterprise — which supplies engineering, assist and coaching providers to world armed forces — was promoted to the Footsie in March.
But I consider it stays undervalued at at the moment’s value of 833.5p per share. With a price-to-earnings (P/E) ratio of 17.4 occasions, it stays far cheaper than different heavyweight UK defence shares like BAE Programs (22.2 occasions), Rolls-Royce (32.2 occasions) and Chemring (20.6 occasions).
Its sub-1 price-to-earnings development (PEG) ratio of 0.3 occasions additionally suggests its shares are critically low cost. This supplies scope for extra vital share value positive aspects given the tempo at which weapons spending is hovering.
Babcock’s capitalising successfully on this fertile panorama because of its sturdy world relationships and experience in key areas (its duties embrace sustaining the UK’s fleet of nuclear submarines, for example). Revenues rose 11% within the 12 months to February 2026, whereas working revenue leapt 17%.
On the detrimental facet, persistent provide chain points within the defence sector might compromise future earnings development. But I feel that is greater than mirrored in its low valuation.
Babcock could possibly be fascinating due to its restricted publicity to the US. As a consequence of this, earnings are much less depending on Stateside defence spending, which might fall dramatically within the coming years.

Hochschild Mining
Silver producer Hochschild Mining (LSE:HOC) has additionally soared over the past 12 months, on this case pushed by growing treasured metals costs. At 278.9p per share, the FTSE 250 firm’s up 77% since this level in 2024.
The corporate primarily produces silver from its mines in The Americas. Nonetheless, it additionally produces not-insignificant quantities of gold, permitting it to capitalise on the yellow metallic’s surge to repeated highs.
Wanting forward, I feel Hochschild might ship superior share value positive aspects than pure-play gold shares. That is due to silver’s present cheapness relative to gold, leaving ample room for the gray metallic to outperform its treasured cousin.
The gold/silver ratio — which measures the worth of as soon as silver ounce relative to certainly one of gold — is at the moment at 1:99, which is excessive by historic requirements. Bullion vendor Sharps Pixley notes that the ratio peaked at 1:128 through the pandemic when gold costs peaked earlier than toppling to 1:70 within the months following.
It says that “with gold at $3,200 per ounce, a 1:70 ratio would put silver at $45.70.” That doubtlessly supplies substantial upside from present ranges of $32.88 (gold was not too long ago altering palms at $3,247.20).
After all there’s no assure that silver costs will rise. And even when they do, manufacturing issues could hamper Hochschild’s skill to take advantage of this, a relentless danger within the mining trade.
However on steadiness, I feel the corporate’s price critical consideration from ISA traders, and particularly at present costs. It trades on a ahead P/E ratio of simply 8.4 occasions, and carries a PEG of 0.1.