Rate of change

The Rate of Change (ROC) is a momentum-based technical indicator that measures the percentage change in price between the current price and a price from a specified number of periods ago. It instantly tells you the price difference, helping to identify the strength and direction of a price trend.

Rate of Change example calculation

Suppose the current price is 120, and the price 10 periods ago was 100. This indicates a 20% increase over the last 10 periods. The resulting value you’d get would be:

{
	"value": 20
}

Get Rate of Change (ROC) values via API

We provide API access to the ROC values for all of the most popular assets like stocks, crypto (try one of the popular exchanges like Binance) and forex, on all commonly used timeframes – from the weekly and daily all the way down to one minute intervals. You can also calculate the values on your own data using our manual method.

Customize the ROC

To customize the Rate of Change (ROC) indicator, you can adjust the period parameter, which defines the number of past periods used in the calculation. A shorter period (e.g., 5 days) makes the ROC more sensitive to recent price changes, providing quicker signals but potentially more noise. Conversely, a longer period (e.g., 20 days) smooths out fluctuations, offering a clearer view of long-term trends but potentially slower signals. Adjusting this parameter allows traders to tailor the ROC to their trading style and market conditions, balancing between responsiveness and reliability.

The ROC is a simple yet effective tool for measuring momentum and trend strength.

Get started with the roc

Simply make an HTTPS [GET] request or call in your browser:

			[GET] https://api.taapi.io/roc?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=1h

API response

The roc endpoint returns a JSON response like this:

			{
  "value": 3.182063053142148
}
Example response from TAAPI.IO when querying roc endpoint.

API parameters

secret
Required String
The secret which is emailed to you when you request an API key.
exchange
Required String
The exchange you want to calculate the indicator from: binance, binancefutures or one of our supported exchanges. For other crypto / stock exchanges, please refer to our Client or Manual integration methods.
symbol
Required String
Symbol names are always uppercase, with the coin separated by a forward slash and the market: COIN/MARKET. For example: BTC/USDT Bitcoin to Tether, or LTC/BTC Litecoin to Bitcoin...
interval
Required String
Interval or time frame: We support the following time frames: 1m, 5m, 15m, 30m, 1h, 2h, 4h, 12h, 1d, 1w. So if you're interested in values on hourly candles, use interval=1h, for daily values use interval=1d, etc.
backtrack
Optional Integer
The backtrack parameter removes candles from the data set and calculates the roc value X amount of candles back. So, if you are fetching the roc on the hourly and you want to know what the roc was 5 hours ago, set backtrack=5. The default is 0.
chart
Optional String
The chart parameter accepts one of two values: candles or heikinashi. candles is the default, but if you set this to heikinashi, the indicator values will be calculated using Heikin Ashi candles. Note: Pro & Expert Plans only.
addResultTimestamp
Optional Boolean
true or false. Defaults to false. By setting to true the API will return a timestamp with every result (real-time and backtracked) to which candle the value corresponds. This is especially helpful when requesting a series of historical values using the results parameter.
gaps
New Optional Boolean
true or false. Defaults to true. By setting to false, the API will ensure that there are no candles missing. This often happens on lower timeframes in thin markets. Gaps will be filled by a new candle with 0 volume, and OHLC set the the close price of the latest candle with volume.
results
New Optional String
number or max. Use this parameter to access historical values on the past X candles until the most recent candle. Use max to return all available historical values. Returns an array with the oldest value on top and most recent value returned the last.
period
Optional Integer

This is the look-back period (e.g., 10 days, hours)

Default: 10

More examples

Let's say you want to know the roc value on the last closed candle on the 30m timeframe. You are not interest in the real-time value, so you use the backtrack=1 optional parameter to go back 1 candle in history to the last closed candle.

				[GET] https://api.taapi.io/roc?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=30m&backtrack=1
Get roc values on each of the past X candles in one call

Let's say you want to know what the roc daily value was each day for the previous 10 days. You can get this returned by our API easily and efficiently in one call using the results=10 parameter:

				[GET] https://api.taapi.io/roc?secret=MY_SECRET&exchange=binance&symbol=BTC/USDT&interval=1d&results=10

Looking for even more integration examples in different languages like NodeJS, PHP, Python, Curl or Ruby? Continue to [GET] REST - Direct documentation.