Several mutual funds have stop updating their historical pricing as of 4/24/18.
When you switch from summary to historical data the price reflected stops at 4/24/18. This is also the case when you export the pricing to Excel. Symbols include FZFLX, HBLIX, HYND, AAGOX, WMICX WFPAX, VWELX, VISVX just to mention a few. This just started recently.
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Thanks for your post, Steve!
Unfortunately, we are unable to replicate your inquiry. Please make sure you have the time period adjusted to reflect the correct dates before you download the data. Here is a help article: https://help.yahoo.com/kb/finance-for-desktop/sln2311.html that may assist you.
Regards,
Yahoo Finance Support