Market efficiency before and after the introduction of electronic trading at the Toronto stock exchange
The trend toward automation of the trading activity on stock exchanges has spread around the world in recent years. Using rescaled range analysis, we test the effect of automation at the TSE on the market's efficiency using daily and monthly return data. Significant departures from a random wal...
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| Veröffentlicht in: | Review of financial economics 1997, Vol.6 (1), p.29-56 |
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| creator | Freund, William C. Larrain, Maurice Pagano, Michael S. |
| description | The trend toward automation of the trading activity on stock exchanges has spread around the world in recent years. Using rescaled range analysis, we test the effect of automation at the TSE on the market's efficiency using daily and monthly return data. Significant departures from a random walk model were found for selected individual stocks in the daily data. However, monthly returns of various stock indexes were more closely described by a random walk process. Differences in the daily and monthly data may be attributable to the effects of aggregation and indexation on return data. In addition, several simple ‘technical’ trading strategies were compared with a ‘buy and hold’ strategy using daily data for 25 stocks. Despite the presence of non-random patterns in the return data, the technical trading rules could not exploit this information to out-perform the buy and hold strategy. Thus, the presence of deviations from a random walk do not necessarily translate into abnormal performance. Overall, the results suggest automation did not significantly alter the degree of market efficiency at the TSE. |
| doi_str_mv | 10.1016/S1058-3300(97)90013-6 |
| format | Article |
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| ispartof | Review of financial economics, 1997, Vol.6 (1), p.29-56 |
| issn | 1058-3300 1873-5924 |
| language | eng |
| recordid | cdi_proquest_journals_196392858 |
| source | RePEc; Periodicals Index Online; Access via Wiley Online Library; Access via ScienceDirect (Elsevier) |
| subjects | Analysis Automation Efficiency Efficient market theory Efficient markets Electronic trading Hypotheses Market shares New stock market listings Random walk theory Rates of return Statistical analysis Stock exchanges Stock prices Stock-exchange Studies Technology application Time series |
| title | Market efficiency before and after the introduction of electronic trading at the Toronto stock exchange |
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