Scalping at the top and bottom of the price range
Description
Back when the selection is trading at the top of its price range or lay when it is at the bottom of that range, and green up later.
This is very similar to trading at support and resistance lines. The triggers watch the money that is being traded at various prices and placed a bet as soon as the last traded price is at the edge of the zone within which the biggest chunk of that money is matched.
The top and bottom of the price range is recognised according to the following criteria:
Top of the range:
Here is what the top of the range can look like:
Bottom of the range:
Here is what the bottom of the range can look like:
There must be enough money in the market and on the selection for these calculations to be valid (see constants for the corresponding settings).
You need to have these settings ON for the triggers to work correctly:
Triggers
Use the following constants to adjust the settings of the triggers:
| min_rank | Min. rank |
| max_rank | Max. rank |
| mins_before_start | When to start betting, minutes before the off |
| close_secs | When to close all bets, seconds before the off |
| bet_stop_secs | When to stop betting, seconds before the off |
| bet_size | Size of the bet, % of the bank |
| max_loss | Max. loss after which to stop betting, % of the starting bank |
| target_profit | Max. profit after which to stop betting, % of the starting bank |
| min_price | Min. price of selection |
| max_price | Max. price of selection |
| greenup_tcks | Greenup ticks |
| edge_perc | How much the money traded at the edge is less than the rest of selection's matched volume, % of the rest |
| min_vlm | Minimum volume matched in the market |
| min_sel_vlm | Minimum % of market volume on selection |
How this works
The tirggers will repeatedly place back and lay bets on different selections in the market, and then close all unmatched/untraded bets at 30 seconds before the off. At the start of an event the market may look like this:
Important: these triggers will NOT work in Time Machine as BetFair does not provide the data on market volume as part of its Historical Data Licence.