Wednesday, April 30, 2008

Thoughts on Data Problems

These things happen. There will be delays in getting data caused by vendors. There will be delays caused by your hardware, or your schedule. Using a weekly timeframe, this is not significant. A few days will not have a significant impact on long-term performance. Even in the worst week in market history in October 1987, failing to act on Monday's open would not have been the end of the world. Half of those losses were recovered within the week.

This strategy is a long-term investment plan. There is no need to develop the redundant systems required for a day trader. In a worst case, the calculations would have been done by hand today (actually in Excel using data from Yahoo).

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