esta semana Elon Musk ha comprado deuda de SolarCity por 65millones de dolares
... es muy inusual y no envía una buena señal para los inversores

At issue are SolarCity's "Solar Bonds," which are senior, unsecured bonds that pay 6.5 % interest and mature in early 2018. They are open to retail investors.
Elon Musk's, Rives' SolarCity bond purchases are 'very odd'