Definition
The dollar difference between today's opening price and yesterday's closing price.
Parameters
Asset
Output range: Unbounded
Example condition
text
`Gap Size(SPY) > 2` (SPY gapped up $2 at open)Use in a strategy
Add this indicator to a strategy condition, choose its supported parameters and compare the output with the threshold required by your rule. Preserve the same interval and lookback when comparing backtests.
After saving the condition, inspect its asset, interval, lookback and comparison operator against the parameters above. If no trades occur, check whether the condition ever became true and whether the requested input data exists for that period. A missing input is not a zero-valued signal. An indicator produces an input to a rule. It does not establish future returns, and data availability can differ across assets and periods.