AGC
a great provider of information
a great provider of information
Designed for and built by active traders, Market Data is the an API/data solution that gives you everything you need: decades of financial data, backtesting, technical & fundamental analysis, and more.Download current and historical options prices (15+ years) directly into your Google Sheet with a simple formula. It works just like the GoogleFinance formula, but with options!Market Data’s free Sheets Add-on is the perfect companion for options traders.
Market Data (marketdata.app) has 112 customer reviews on Five Star Index, with an average rating of 4.5 out of 5.
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AGC
a great provider of information
Dale W.
Good product and it works well with my Google Sheets.
Response from Market DataMar 6, 2026
Thank you for the review! We're glad to hear the product is working well for you and that the Google Sheets integration fits your workflow. We appreciate the feedback and your support!
Rick
Works well. would like to see refresh of selected cells only, rather than all the 400+ in my sheet.
Response from Market DataMar 6, 2026
Thank you for the review! We're glad to hear the tool is working well for you. Your point about refreshing only selected cells makes a lot of sense, especially on larger sheets where a full refresh can be inefficient. Feedback like this is very helpful as we continue improving the Sheets experience, and we appreciate you taking the time to share it.
Jason G.
The google method for downloading minutes is efficient. But... there are always gaps in the minutes when I run a backtest on the data.
Response from Market DataMar 6, 2026
Thank you for the feedback! We're glad to hear the Google Finance method for downloading minute data has been efficient for your workflow. We also appreciate you pointing out the gaps you've encountered during backtesting—those kinds of observations are very helpful. If you’re able to share specific symbols and date ranges through a support ticket, our team would be happy to investigate and correct any underlying data issues.
William J.
I think you have a wonderful product. I received a letter talking about future expansions of the tools to include greeks for options that have already traded and do not exist anymore. However, I think you should license your function to Google Workspace and Google One. Meaning, Google pays you for a license for the use of your add on and it would be included with the users Google One or Workspace accounts. I think you would make a lot more money, and you could hire more people. There's that. What I am saying is, think bigger.
Response from Market DataMar 6, 2026
Thank you for the thoughtful review and the kind words about the product. We're glad you're enjoying it. The idea you mentioned about licensing the functionality through Google Workspace or Google One is an interesting perspective, and we appreciate you taking the time to share it. Feedback like this helps us think about different ways the product could evolve as we continue expanding features—such as the planned historical Greeks support you referenced. Thanks again for the encouragement and for using Market Data!
Sajjan
Install was easy, working very well. Quotes are bit delayed, but it is clearly mentioned.
Response from Market DataNov 10, 2025
Thank you for the feedback! We're glad to hear the install went smoothly and the tool is working well for you. You're absolutely right—while the base tier includes delayed quotes, we do offer real-time data upgrades on higher-tier plans for those who need it. If you're interested in switching to a plan with live quotes, feel free to reach out—our team is happy to help!
George Z.
Very unclear how to use. Instructions are horrible. But once it is set up, it works very well. The only downside is the inability to have continuous, streaming, real time data, but understand that is due to some Google issue. I appreciate the suggestion of using the embedded Googlefinance function to make it automatically pull the data every 2 minutes. It would be great to have some mechanism to force that function to recalculate at whatever rate desired. Two minutes is too long. Other than that, the functionality is very good. Just have to hunt around to find how it works. So, if there is a way to force the data refresh to 15 seconds instead of 2 minutes, that would be great.
Response from Market DataJun 22, 2025
Thank you for your honest and detailed feedback. We're glad to hear that once everything is set up, the functionality meets your expectations. We acknowledge that the setup instructions could be clearer, and we're actively working on improving our onboarding and documentation to make things easier. You're absolutely right about the Google Sheets refresh limitations—unfortunately, those are controlled by Google, but we're always exploring workarounds and will continue to share tips like the GOOGLEFINANCE trigger. We appreciate your suggestions and support, and we’re committed to making the experience smoother for you and all our users.
Mike M.
I found a small glitch in a technical function and it was quickly repaired with personal attention.
Response from Market DataDec 11, 2024
Thank you for your kind words and four-star review! We're glad to hear that our tech support team was able to quickly address the glitch and provide you with personal attention. Your feedback helps us improve, and we're committed to maintaining this level of responsive service. If there's anything else we can assist you with, we're here to help!