5 Stocks For Trying To Build Wealth After 50 Enter Your Email Address The stock market crash may have caused some ISA investors to reassess their retirement plans. For example, they may naturally become more cautious and decide to prioritise cash holdings over investments in UK shares.However, now could be the right time to buy high-quality stocks and hold them for the long run. Doing so could enable you to capitalise on low valuations currently available, and produce higher returns over the coming years than other assets. It could even improve your prospects of retiring early.5G is here – and shares of this ‘sleeping giant’ could be a great way for you to potentially profit!According to one leading industry firm, the 5G boom could create a global industry worth US$12.3 TRILLION out of thin air…And if you click here we’ll show you something that could be key to unlocking 5G’s full potential…ISA investing after a stock market crashISA investors may become more risk averse after the market crash. After all, many UK shares are currently trading at their lowest levels since the last bear market in 2009. Furthermore, there’s scope for them to trade even lower as risks facing the world economy are at heightened levels.However, the return prospects for FTSE 100 and FTSE 250 shares could be more promising today than they have been for many years. Both indexes currently trade significantly lower than they did at the start of the year despite their recent rebounds. Therefore, they provide investors with the opportunity to implement a buy low/sell high strategy that could offer market-beating returns in the long run.Relative performance of other assetsDue to the likelihood of a recovery after the recent market crash, the returns on UK shares could be more attractive than those of other mainstream assets. Cash ISAs, for example, may struggle to offer returns that beat inflation due to low interest rates. The same applies for bonds, which may previously have been seen as a realistic alternative to shares. And, with buy-to-let properties being valued at close to record multiples of average salaries in the UK, the prospects for landlords could be challenging.As such, any investor who’s seeking to gradually build a nest egg for retirement over the long run may be better off buying shares. Not only do they appear to offer good value for money at the present time, the return prospects for other assets are somewhat unappealing on a relative basis.Identifying the best UK sharesOf course, risks surrounding a second market crash could remain in place over the coming months. Therefore, it may be prudent to purchase the best UK shares that are available. They may include businesses with solid balance sheets, low fixed costs in case of a second lockdown. They may also have strategies that allow them to be relatively flexible to respond to potential changes in consumer trends.By focusing your capital on such businesses, you could build a sound portfolio that helps to improve your financial prospects. It could even help you to bring your retirement date a step closer as the economy’s outlook improves. Our 6 ‘Best Buys Now’ Shares I would like to receive emails from you about product information and offers from The Fool and its business partners. Each of these emails will provide a link to unsubscribe from future emails. More information about how The Fool collects, stores, and handles personal data is available in its Privacy Statement. Image source: Getty Images Peter Stephens | Sunday, 12th July, 2020 Stock market crash: I’d buy the best UK shares in an ISA today to get rich and retire early See all posts by Peter Stephens Simply click below to discover how you can take advantage of this. Renowned stock-picker Mark Rogers and his analyst team at The Motley Fool UK have named 6 shares that they believe UK investors should consider buying NOW.So if you’re looking for more stock ideas to try and best position your portfolio today, then it might be a good day for you. Because we’re offering a full 33% off your first year of membership to our flagship share-tipping service, backed by our ‘no quibbles’ 30-day subscription fee refund guarantee. Click here to claim your free copy of this special investing report now! Markets around the world are reeling from the coronavirus pandemic…And with so many great companies trading at what look to be ‘discount-bin’ prices, now could be the time for savvy investors to snap up some potential bargains.But whether you’re a newbie investor or a seasoned pro, deciding which stocks to add to your shopping list can be daunting prospect during such unprecedented times.Fortunately, The Motley Fool is here to help: our UK Chief Investment Officer and his analyst team have short-listed five companies that they believe STILL boast significant long-term growth prospects despite the global lock-down…You see, here at The Motley Fool we don’t believe “over-trading” is the right path to financial freedom in retirement; instead, we advocate buying and holding (for AT LEAST three to five years) 15 or more quality companies, with shareholder-focused management teams at the helm.That’s why we’re sharing the names of all five of these companies in a special investing report that you can download today for FREE. If you’re 50 or over, we believe these stocks could be a great fit for any well-diversified portfolio, and that you can consider building a position in all five right away.