to measure a securitys obv, you need to understand the relationship of closing prices between two successful trading days.
Obv obv p r e v volume, if close close p r e v 0, if close close p r e v volume, if close close p r e v where obv current on-balance volume level obv p r e v previous on.
The obv calculation formula is as follows if the current closing price is higher than the last closing price, the current obv is added to the previous value. When the previous close is higher than the current, the current volume is subtracted from the prior value.
in this video ill teach you how to use and calculate obv (on balance volume). Obv is a great tool to throw in your ta (technical analysis) toolbelt as it is.
create a loop to cycle through all of the stocks for which we want to calculate the obv. Determine the amount of historical days you want to observe, and then create an inner loop to cycle through each day. Add the volumes of the positive days and subtract the volumes of the negative days from the variable obvvalue.
the obvs idea in a nutshell the price of the instrument should follow the trading volume. The formula we use to calculate the on-balance volume indicator is pretty simple and straightforward obv obv prev trading volume.
if close price of day n close price of day n-1, then obv of day n obv of day n-1 trading volume if close price of day n close price of day n-1, then obv of day n obv of day n-1 trading.
obv obv of the previous bar volume of the current bar (todays volume) if the close of this bar is lower (less) than the close of the previous bar, then obvobv of the previous bar volume of the current bar (todays volume).
accordingly, obv will be calculated as follows when todays price is higher than yesterdays price obv obv (yesterday) volume today.
The technique is pretty simple if todays closing price of cryptocurrency or any other currency is higher than yesterdays, then todays trading volume is added to the previous obv value (obv previous obv todays trading volume).
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