Henderson Opportunities Trust - the prices are wrong. Looks like it's listing Net Asset Value price sometimes and Stock price others.
Also data missing on chart for this year for M&G UK Growth A Acc ( GB0031111817.L)
That's three out of three that are wrong.
This is ticker symbol: HOT.L
It's the same with ticker symbol FRCL.L
There are problems with both charts, lots of incorrect spikes maybe it's a problem with importing data for investment trusts.