The Sharpe ratio for SPY at Yahoo Finance and MorningStar over the past three years is 1.31, but Quantopian is coming up with 2.10. Also, MorningStar has 2.51 for Sortino vs. Quantopian's 27.99.
Earth's orbit is the path in which the Earth travels around the Sun.iewed from a vantage point above the north poles of both the Sun and the Earth, the Earth would appear to revolve in a counterclockwise direction about the Sun. From the same vantage point, both the Earth and the Sun would appear to rotate in a counterclockwise direction about their respective axes.
Earth's rotation. Earth's rotation is the rotation of Planet Earth around its own axis. Earth rotates eastward, in prograde motion. As viewed from the north pole star Polaris, Earth turns counterclockwise. The North Pole, also known as the Geographic North Pole or Terrestrial North Pole, is the point in the Northern Hemisphere where Earth's axis of rotation meets its surface.