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.
Reference 2: When viewed from above the north pole, does the Earth rotate clockwise or counterclockwise? Counterclockwise. When it is 12 o'clock in New York and that part of the Earth directly faces the Sun, it is only 9 o'clock in California. In 3 hours California will have rotated to the position where New York was.