Last week's news that German gold stock newsletter writer Oliver Gross has dumped everything in his portfolio — with the hope of buying it back when the market is stronger — has many investors wondering whether they should do the same. And why shouldn't they consider that? After all, the gold spot price is down 5.16 percent year-to-date, and many gold companies aren't faring particularly well either — especially since the end of September. Silver, which many gold miners also produce, is having an even harder time this year having seen a year-to-date fall of 20.53 percent. It's against that background that Dundee Capital Markets has released a report suggesting that investors take a variation on Gross' strategy: "sell today, buy back in December." The strategy The report, published Tuesday, reminds investors that the period leading up to December 31 is "the season for tax-loss selling." What does that mean? Speaking this time last year to The Globe and Mail, Tim Cestnick, president of WaterStreet Family Offices and author of a number of tax and personal finance books, explained, "[t]axes need to be thought about throughout the year, but for sure in the last three or four months of the year, there are opportunities that may arise to save some tax." Expanding further, the news outlet notes that while buying stocks low and selling them high is "ideal," sometimes that's not an option. In such cases, it's possible for investors to "sell shares held in a non-registered account that have dropped in value — thus incurring a loss when sold" and then use that loss to "offset other capital gains incurred throughout that year."