Hi, There's a ticker which hasn't been updated since last summer: https://finance.yahoo.com/quote/TITAN.HE?p=TITAN.HE
If you check the link, you'll see that the last closing price of TITAN.HE is said to be 8.00 which is very old information. In fact, this is also said right under the closing price:
"At close: June 28 6:35PM EEST" i.e.over six months old.
The graph of last 12 months shows the current price very differently ... and also correctly. This stock has been trading around 10.00 for a long while.
But my portfolio shows exactly the same result: +0.50% rise, from 7.96 to 8.00 - every night, month after month.
Thanks for your post! We have reported this to our Engineering team and they will look into this further.