DATE(2026,16,6) means April 6, 2027, so first correct the end date to the date you intended and then distinguish the reported post-September 2026 feed problem from Excel’s documented access restrictions.
Excel uses DATE(year,month,day). When the month exceeds 12, Excel carries the excess into subsequent years; therefore, month 16 becomes April 2027.^1^
Your current formula requests data from November 5, 2026 through April 6, 2027. It also includes future trading dates, for which completed historical data is unavailable; STOCKHISTORY generally updates only after a trading day is complete.^2^
If you intended June 16 through November 5, 2026, use:
=STOCKHISTORY("XNAS:MSFT",DATE(2026,6,16),DATE(2026,11,5))
XNAS:MSFT explicitly selects Microsoft on Nasdaq. The simpler "MSFT" is also valid and uses the default exchange.^2^
Determine which problem applies
Run this completed, earlier-date test:
=STOCKHISTORY("XNAS:MSFT",DATE(2026,9,4),DATE(2026,9,4))
- If September 4 works but dates after September 4–7, 2026 fail: this matches a widely reported
STOCKHISTORY service/data-provider problem affecting later dates. Reports indicate no client-side workaround; Office repair or reinstallation did not correct it.^3^
In Excel, select Help → Feedback → Report a Problem, include the formula and failing dates, and wait for the service feed to be restored.^4^ These reports describe missing-date or non-trading-day errors rather than #BLOCKED!, so the date-dependent test is necessary before treating the reported outage as the explanation.
- If the September 4 test also returns
#BLOCKED!: troubleshoot access, licensing, and privacy settings instead. Microsoft defines #BLOCKED! as a required resource being inaccessible.^5^
If every date returns #BLOCKED!
- Check the signed-in license
- Go to File → Account.
- Confirm Excel shows the intended signed-in Microsoft account and an activated Microsoft 365 subscription.
-
STOCKHISTORY requires Microsoft 365 Personal, Family, Business Standard, or Business Premium.^2^
- Allow linked data types
- Go to File → Options → Trust Center → Trust Center Settings.
- Under Security settings for linked data types, select Prompt user about linked data types.
- Recalculate the formula and approve the prompt.
Avoid Enable all linked data types unless necessary, because Microsoft marks it as not recommended.^5^
- Check connected experiences
- Go to File → Account → Manage Settings.
- Ensure connected experiences are enabled, then restart Excel. Microsoft documents this location for controlling Microsoft 365 connected experiences.^6^
- If the option is unavailable or controlled by policy
- On a managed computer, contact the organization’s Microsoft 365 administrator.
- For a personal subscription, use Help → Feedback → Report a Problem and include the exact
#BLOCKED! tooltip text, Excel version from File → Account, and whether the September 4 test succeeds.
An unsupported region can also produce #BLOCKED!; that condition is not resolved by changing the formula.^5^
References
- DATE function | Microsoft Support
- STOCKHISTORY function | Microsoft Support
- Stock History not working since 09/04/2026 - Microsoft Q&A
- Stock History Excel feed not working after 7th September 2026 - Microsoft Q&A
- How to correct a
#BLOCKED! error
- Connected experiences in Microsoft 365 | Microsoft Support