The data I am able to gather in my… The data I am able to gather in my tracking spreadsheets has been very insightful. Marketdata has made it so simple to collect market price action on options spreads that is not available anywhere.

Good product. Minor issues. 100% worth the investment! Good product. I do have occasions when formula is correct and I get an error message ... only to see, a short time later, that data has populated. All in all, though, I'm very satisfied to have the capacity to do market analysis more efficiently than having to download from an outside source.

Exactly what is needed. This is exactly the service that small investors have needed badly. A reliable, fast, affordable source for real-time stock and options quotes along with quite a few other nice perks. The continued development of this service would be a huge boost for individual stock traders.

It is a pleasure working with Market Data It's a pleasure working with a Company who cares about their product. Whenever I have issues with the data, their support gets back to me asap. They listen to their customers, and are constantly adding new features, with more in the works! They have very completive pricing, for all size accounts. I highly recommend giving them a try if your looking for Stock and Options data. Compatible with GSheets and Python.

5 stars because the tool is very useful… 5 stars because the tool is very useful and integrates with GSheets nicely. Without this tool, trading options would be far more difficult for me. The only downside is I find it a bit clunky to use because it lacks any kind of autorefresh function and the data does not persist--it seems I frequently need to manually request a refresh and it is unclear to me what sort of time limits are at play. The data it serves up are not persistent in the sheet so a manual refresh is required unless I manually copy the data and save it with a call to paste special/values only. These are minor gripes about a very useful app.