EDZ (an ETF) split without adjusting price
in case of split of any traded asset - graph must be adjusted.
see EDZ - having a sharp ***** on 03.29.2018.
take a look what it looks like by comparing this ETF with any other on same graph
69th
ranked

Hello Ask Zeev,
In your next post, can you provide some examples of other tickers so we can further investigate your inquiry?
Regards,
Yahoo Finance Support