# Alpaca Bars API shows incorrect Volume

**URL:** <https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461>\
**Category:** Alpaca Market Data\
**Created:** [May 15, 2020, 8:41pm UTC](https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461 "2020-05-15T20:41:16Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![bernick](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/bernick/32/773_2.png) [@bernick](https://forum.alpaca.markets/u/bernick)\
**Post date:** [May 15, 2020, 8:41pm UTC](https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461/1 "2020-05-15T20:41:16Z")

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Considering the following API call:

[https://data.alpaca.markets/v1/bars/1D?symbols=HBIO](https://data.alpaca.markets/v1/bars/1D?symbols=HBIO)

And a subsampled result:

{  
“t”: 1589428800,  
“o”: 2.62,  
“h”: 2.65,  
“l”: 2.5,  
“c”: 2.6,  
“v”: 154908  
}

This time stamp refer to May 14, 2020.

However, if I cross-validate with other source ,volume should be ~81K.

Why such a big difference?

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**Author:** ![dangbinh876](https://avatars.discourse-cdn.com/v4/letter/d/ce7236/32.png) [@dangbinh876](https://forum.alpaca.markets/u/dangbinh876)\
**Post date:** [May 19, 2020, 6:28pm UTC](https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461/2 "2020-05-19T18:28:02Z")

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Show incorrect candlestick, and missing data.

 ![Error_Alpaca_04](https://us1.discourse-cdn.com/flex020/uploads/alp/original/1X/f95528c768b7706317a99b7e0d59ae7f0c96ab7c.png)

 ![Error_Alpaca_03](https://us1.discourse-cdn.com/flex020/uploads/alp/original/1X/b2146c51de0e5bb5fe38dfeb80d3197241caa799.png)

 ![Error_02](https://us1.discourse-cdn.com/flex020/uploads/alp/original/1X/7885122d9888ad59eae30c47cfcd56f544056511.png)

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<div class="post-metadata">

**Author:** ![hitoshi](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.alpaca.markets/hitoshi/32/69_2.png) [@hitoshi](https://forum.alpaca.markets/u/hitoshi)\
**Post date:** [May 19, 2020, 6:44pm UTC](https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461/3 "2020-05-19T18:44:27Z")

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Thank you for the report. Please keep in mind that Data API is aggregate of 5 exchanges and does not necessarily match the fully consolidated data.

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<div class="post-metadata">

**Author:** ![Tyler](https://avatars.discourse-cdn.com/v4/letter/t/35a633/32.png) [@Tyler](https://forum.alpaca.markets/u/Tyler)\
**Post date:** [June 12, 2021, 10:12pm UTC](https://forum.alpaca.markets/t/alpaca-bars-api-shows-incorrect-volume/1461/4 "2021-06-12T22:12:24Z")

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So does this mean it will be inaccurate and there is nothing I can do to fix it? I was wondering if purchasing the premium API package it will solve the inaccurate volume issues. Will it? @hitoshi