Is the High Open and Open Low Closer to Equality, from Victor Niederhoffer
Is the high-open in a day compared to the open-low much closer to equality than would be expected in a random walk with standard deviation and expectation similar to the stock market, (an expectation of 0 per hour and standard deviation of 4.5 per half hour and 6 1/2 per hour with 7 half hours per day might be very close to reality.) If so, can any predictive systems be devised from it, and are there other markets where similar excursions could be limned?
| SPU3 | Open | High | Low | Close |
| 8/23/2013 | 1660.0 | 1662.5 | 1652.5 | 1661.4 |
| 8/22/2013 | 1644.0 | 1657.5 | 1643.5 | 1654.8 |
| 8/21/2013 | 1646.0 | 1654.7 | 1636.3 | 1636.5 |
| 8/20/2013 | 1645.3 | 1656.5 | 1643.5 | 1650.6 |
| 8/19/2013 | 1651.2 | 1656.5 | 1643.0 | 1644.9 |
| 8/16/2013 | 1655.5 | 1661.0 | 1650.0 | 1651.1 |
| 8/15/2013 | 1669.0 | 1669.0 | 1655.5 | 1655.7 |
| 8/14/2013 | 1690.5 | 1692.7 | 1681.2 | 1682.0 |
| 8/13/2013 | 1689.2 | 1694.4 | 1679.2 | 1690.8 |
| 8/12/2013 | 1679.7 | 1688.2 | 1679.2 | 1687.1 |
| 8/9/2013 | 1691.0 | 1696.0 | 1682.5 | 1686.2 |
| 8/8/2013 | 1695.7 | 1696.8 | 1684.5 | 1693.7 |
| 8/7/2013 | 1687.2 | 1689.2 | 1680.8 | 1688.2 |
| 8/6/2013 | 1698.8 | 1700.3 | 1688.9 | 1693.9 |
| 8/5/2013 | 1701.0 | 1704.7 | 1699.0 | 1702.5 |