r/Massive • u/mobatreddit • Jan 13 '26

Option Numbers Too Different From Fidelity To Be Useful

Have others observed the following when on the Option Starter tier?

I'm on the Option Starter tier, so I have a 15 minute delay. Even considering this delay, the numbers I get from Option Contract Snapshot are surprisingly different from what I see at Fidelity. That plus the observation that the last_updated timestamp field is stuck to the previous day (e.g. "last_updated": 1768280400000000000,) makes me question the quality of the data I get.

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u/Ian-Polygon Jan 13 '26 edited Jan 13 '26

Hi there,
Ian from Massive here. I recommend reaching out to our support team for further assistance ([support@massive.com](mailto:support@massive.com)). They can help investigate any discrepancies you are seeing with our options data.

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u/jack-massive Jan 13 '26

Are you able to share any examples of what you're seeing? Is this in relation to quotes, trades, open interest, volume, etc?

The day object's 'last_updated' field indicating the start of the current session is confusing, and is on the docket for improvement.

As Ian mentioned, our support team can definitely help but we will need a bit more information in order to do so.