Calculating the #advancedeclineline: total number of #stocks of the underlying #index that went higher are added each day. Number of declining #stocks are subtracted. The net number + prior day’s total = a running total of advancing - declining #stocks.
There are many #tradingsystems that can generate short-term #returns—but frankly, they don’t happen very often. So, for them to be effective you need to add these to a longer term “base system” model.