When shares have climbed and climbed it can be very tempting for investors to chase the gains in the hope the shares will go even higher. But if you’re too late to the party, you can be left nursing declines instead.

So I thought I would take a quick look at a few recent high-flyers and see if there might be more gains ahead for their shareholders.

Amcor Limited (ASX: AMC) shareholders have seen their shares rise by 17% in the last month. But if you look at them on a year-to-date view, they are only up by 6%. I feel the shares were unduly punished earlier this year after concerns over a couple of acquisitions and a global slowdown.

But the company produced a strong interim result and equally strong guidance. Priced at 18 times earnings, the shares are about fair value in my opinion. I believe this makes Amcor a good long-term investment.

Lend Lease Group (ASX: LLC) is another company which appears to have suffered the market’s wrath rather unjustly. Year-to-date the shares are still down around 2%, despite a whopping 20% rally in the last month.

Lend Lease has a number of exciting projects in the pipeline valued at almost $47 billion. Perhaps the most notable one is the Barangaroo project in Sydney. Lend Lease looks undervalued to me as it is priced at 12x trailing earnings. I would expect to see the shares climb higher in the next few months.

SEEK Limited (ASX: SEK) continues to be one of the market’s darlings. In the last 10 years the shares have provided shareholders with an average total return of 18%. This year appears to be no different, with the shares climbing 28% in the last month.

SEEK is another company which saw its shares dragged down during the market turmoil at the start of 2016. Because of this it brings the year-to-date return to just under 5%.

In its interim report the company produced top line growth of 22% year over year. I believe its expansion overseas could help sustain this strong level of growth in the future.

Foolish takeaway

I believe all three shares are worthy additions to your portfolio today. They may have rallied strongly in the last 30 days, but I feel there is still plenty left in the tank for the rest of the year.

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Motley Fool contributor James Mickleboro has no position in any stocks mentioned. Unless otherwise noted, the author does not have a position in any stocks mentioned by the author in the comments below. The Motley Fool Australia has no position in any of the stocks mentioned. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy. This article contains general investment advice only (under AFSL 400691). Authorised by Bruce Jackson.