re: valuing phat upgrades, can we please list the explicit upgrade in trade compilations? Last 3 trades is not a good indicator of the value imo. (I don't think mid of range is good either.)
But if it comes to discussion and someone sees a P+100, they can value this subjectively as last three trades, or mid of old range, or mid of a range that post-dates the trade, or other knowledge—this being a benefit of having the discussion. Fixing a value of the upgrade in FC policy achieves little imo, since there is no obvious way to value this upgrade.
A problem with last 3 trades is that it is very vulnerable to manipulation wrt timing reports. i.e. literally no-one going to raise an eyebrow if you tactfully wait a few hours before you post your trade, or if you re-order your reports. Having direct control over ranges like this is not good (especially if we allow outliers to skew ranges due to recency bias, where one trade can increase/decrease a range's mean by 50m or more).
Another problem is that the reported prices for phats naturally range over a 200m+ margin, and so at any given time the chances of the most recent three near the upper/lower extreme is not unlikely. Then the 3-point moving average could be 100m+ off the longer-term average of the hat.
(It's also less calculations for the compiler ^.~)
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14-Feb-2017 21:31:10
- Last edited on
15-Feb-2017 02:09:04
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