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.
The Earth rotates (spins) counter-clockwise as viewed from above the North Pole, which is also from above the ecliptic plane of the solar system. This is the arbitrary up and down convention that allows us to say which direction the Earth is spinning. Most other objects in the solar system spin and orbit counter-clockwise as well. Depending on your location on the planet, the Earth's spin (west to east) could be seen as clockwise or counter-clockwise. In the Northern Hemisphere, looking south toward the equator, the Earth turns counter-clockwise.