The Globe and Mail reports in its Saturday edition that BCE's dividend yield rose above 6 per cent last week, making the telco hard to ignore. The Globe's David Berman writes that the stock, like much of the market, has been wallowing in misery for much of the past six months. By Thursday, the price was down 19 per cent from its recent high in April amid continuing concerns about soaring inflation and rising interest rates, which have hammered the telcos in Canada and the United States. As the stock price fell, the dividend yield rose from slightly below 5 per cent in April to a high of more than 6.3 per cent this week. The current yield is now close to peaks seen over the past 10 years. Mr. Berman says that this oscillating yield can be used as a guideline for when to buy or sell this stock: Selling when the yield is unusually low and buying when it is high has generated compelling results over the following year. Consider several examples over the past 10 years, using quarterly figures for the dividend yield. When the yield was a lofty 6.1 per cent on Dec. 31, 2020 -- in line with today's yield -- an investor who pounced on the stock was rewarded with a total return of about 28 per cent over the next 12 months.