> ## Documentation Index
> Fetch the complete documentation index at: https://developers.stellar.org/llms.txt
> Use this file to discover all available pages before exploring further.

# The Trade Aggregation Object

> When Horizon returns information about a trade aggregation, it uses the following format.

When Horizon returns information about a trade aggregation, it uses the following format:

**timestamp** `string`

Start time for this trade aggregation. Represented as milliseconds since epoch.

**trade\_count** `integer`

Total number of trades aggregated.

**base\_volume** `string`

Total volume of base asset.

**counter\_volume** `string`

Total volume of counter asset.

**avg** `string`

Weighted average price of counter asset in terms of base asset.

**high** `string`

The highest price for this time period.

**high\_r** `object`

The highest price for this time period as a rational number.

**high\_r properties**

**n** `number`

The numerator.

**d** `number`

The denominator.

**low** `string`

The lowest price for this time period.

**low\_r** `object`

The lowest price for this time period as a rational number.

**low\_r properties**

**n** `number`

The numerator.

**p** `number`

The denominator.

**open** `string`

The price as seen on first trade aggregated.

**open\_r** `object`

The price as seen on first trade aggregated as a rational number.

**open\_r properties**

**n** `number`

The numerator.

**p** `number`

The denominator.

**close** `string`

The price as seen on last trade aggregated.

**close\_r** `object`

The price as seen on last trade aggregated as a rational number.

**close\_r properties**

**n** `number`

The numerator.

**p** `number`

The denominator.

```json Example theme={"theme":{"light":"github-light","dark":"github-dark"}}
{
  "_links": {
    "self": {
      "href": "https://horizon-testnet.stellar.org/trade_aggregations?base_asset_type=native\u0026counter_asset_code=NGNT\u0026counter_asset_issuer=GAWODAROMJ33V5YDFY3NPYTHVYQG7MJXVJ2ND3AOGIHYRWINES6ACCPD\u0026counter_asset_type=credit_alphanum4\u0026limit=200\u0026order=asc\u0026resolution=3600000\u0026start_time=1582156800000\u0026end_time=1582178400000"
    },
    "next": {
      "href": "https://horizon-testnet.stellar.org/trade_aggregations?base_asset_type=native\u0026counter_asset_code=NGNT\u0026counter_asset_issuer=GAWODAROMJ33V5YDFY3NPYTHVYQG7MJXVJ2ND3AOGIHYRWINES6ACCPD\u0026counter_asset_type=credit_alphanum4\u0026end_time=1582178400000\u0026limit=200\u0026order=asc\u0026resolution=3600000\u0026start_time=1582178400000"
    },
    "prev": {
      "href": ""
    }
  },
  "_embedded": {
    "records": [
      {
        "timestamp": 1582156800000,
        "trade_count": 9,
        "base_volume": "3487.4699458",
        "counter_volume": "88675.3982178",
        "avg": "25.4268566",
        "high": "25.7603393",
        "high_r": {
          "N": 257603393,
          "D": 10000000
        },
        "low": "25.3804530",
        "low_r": {
          "N": 25380453,
          "D": 1000000
        },
        "open": "25.3990186",
        "open_r": {
          "N": 2500000,
          "D": 98429
        },
        "close": "25.7090558",
        "close_r": {
          "N": 1250000,
          "D": 48621
        }
      },
      {
        "timestamp": 1582160400000,
        "trade_count": 1,
        "base_volume": "0.1058787",
        "counter_volume": "2.7155348",
        "avg": "25.6476024",
        "high": "25.6476019",
        "high_r": {
          "N": 100000,
          "D": 3899
        },
        "low": "25.6476019",
        "low_r": {
          "N": 100000,
          "D": 3899
        },
        "open": "25.6476019",
        "open_r": {
          "N": 100000,
          "D": 3899
        },
        "close": "25.6476019",
        "close_r": {
          "N": 100000,
          "D": 3899
        }
      },
      {
        "timestamp": 1582164000000,
        "trade_count": 15,
        "base_volume": "3992.1321821",
        "counter_volume": "99702.0620798",
        "avg": "24.9746395",
        "high": "25.6764460",
        "high_r": {
          "N": 5000000,
          "D": 194731
        },
        "low": "24.9291379",
        "low_r": {
          "N": 249291379,
          "D": 10000000
        },
        "open": "25.6764460",
        "open_r": {
          "N": 5000000,
          "D": 194731
        },
        "close": "25.0055050",
        "close_r": {
          "N": 5001101,
          "D": 200000
        }
      },
      {
        "timestamp": 1582167600000,
        "trade_count": 4,
        "base_volume": "278.4950271",
        "counter_volume": "7047.6740325",
        "avg": "25.3062832",
        "high": "25.3844475",
        "high_r": {
          "N": 5000000,
          "D": 196971
        },
        "low": "25.2923181",
        "low_r": {
          "N": 252923181,
          "D": 10000000
        },
        "open": "25.2923181",
        "open_r": {
          "N": 252923181,
          "D": 10000000
        },
        "close": "25.3844475",
        "close_r": {
          "N": 5000000,
          "D": 196971
        }
      },
      {
        "timestamp": 1582174800000,
        "trade_count": 1,
        "base_volume": "9.9379734",
        "counter_volume": "252.7685174",
        "avg": "25.4346140",
        "high": "25.4346140",
        "high_r": {
          "N": 254346140,
          "D": 10000000
        },
        "low": "25.4346140",
        "low_r": {
          "N": 254346140,
          "D": 10000000
        },
        "open": "25.4346140",
        "open_r": {
          "N": 254346140,
          "D": 10000000
        },
        "close": "25.4346140",
        "close_r": {
          "N": 254346140,
          "D": 10000000
        }
      }
    ]
  }
}
```