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US sharemarkets ended mixed on Friday. While there were gains in the resources sector, solid economic data caused analysts to question whether the Federal Reserve would lift rates in March. The Dow Jones fell by 57 points or 0.3%, the S&P 500 index lost 0.2%, while the Nasdaq gained 8 points or 0.2%. For the week, the Dow gained 1.5%, the S&P rose 1.6% and the Nasdaq lifted 1.9%. Global oil prices ended slightly lower on Friday as traders booked profits at the end of the week. Brent crude lost US19c or 0.5% to US$35.10 a barrel. US Nymex eased by US29c or 0.9% to US$32.78 a barrel. Over the week Brent rose by US$2.09 or 6.3% with Nymex up US$3.14 or 10.6%.

Warren Buffett delivered his latest letter to Berkshire Hathaway shareholders on Saturday, and it had everything his investors have come to expect. Here are three key takeaways. Photo: Getty

Financial advisor Dan Wiener invests 70-80% of long-term client portfolios in stocks, with the remainder in bonds and cash. When the market fell, he added to funds that had been hit hardest.

Barron's Jack Hough discusses the new issue of Barron's magazine, including a profile of the co-founders of hedge fund AQR. Plus, a look at safe havens and a peek into the Oscars swag bag. Photo: Derek Dudek for Barron's

AQR Managing Director Dan Villalon explains how the firm combines momentum, valuation and other strategies to make money in down markets as well as rising markets.