Last Friday, Gold Investing News (GIN) published an article on Continental Gold (TSX:CNL,OTCQX:CGOOF), whose share price had sunk 28 percent over the course of the week for no apparent reason. At the time, GIN concluded that as the company had not released any bad news and was not being hampered by any jurisdictional issues — such as those currently plaguing gold companies in Burkina Faso — the fall was likely a reaction to the gold's big price drop on October 30 and 31. However, since then it's become clear that another factor was in play last week — and it could have contributed to Continental's share price plunge. That factor is German gold stock newsletter writer Oliver Gross, who on October 30 decided to sell everything in his portfolio. According to CEO.ca's Tommy Humphreys, it's uncertain what "everything" entails, but as of June 2014, Continental, Wildcat Silver (TSX:WS), Pilot Gold (TSX:PLG), Dalradian Resources (TSX:DNA), Red Eagle Mining (TSXV:RD), Timmins Gold (TSX:TMM,NYSEMKT:TGD), Columbus Gold (TSXV:CGT), Sandspring Resources (TSXV:SSP) and perhaps Pure Gold Mining (TSXV:PGM) were covered in his letter. Most of those stocks fell over 20 percent last week. What happened? As mentioned, gold took a steep drop at the end of last week, with blame being placed on a number of factors, including a high US dollar, the Fed's decision to end its bond-buying program and the Bank of Japan's surprise move to increase stimulus. That downward movement no doubt scared a lot of investors out of the market. But why would it affect Gross? After all, he told The Gold Report just a few days before his sell off, "I like to invest when there is blood in the streets, and that is certainly what is happening with precious metal equities."