Vaccine can be a powerful word. It’s worth 14 points in Scrabble (42 on a triple word square) and, last week, it was worth a whole lot more than that to financial markets. On Monday, a pharmaceutical company and a biotech company announced preliminary trials of their vaccine show it may be 90 percent effective, reported Financial Times . The revelation conjured tantalizing visions of a future in which virus precautions are unnecessary and life returns to normal. Around the world, pandemic-fatigued populations cheered and markets rallied. CNBC reported: “The Dow was up nearly 3 percent, while Nasdaq fell 1.5 as laggard sectors like energy and financials outperformed tech. Stay-at-home plays…were sharply lower, but airlines rallied 16 percent. The S&P energy sector, still down 45 percent this year, was up more than 14 percent, and financials were up 8 percent.” As demand for risk assets, like stocks, increased so did bond yields. In the United States, the yield on