[isatrader]

After I entered I discovered that PRT EOD charts for some reason show a different picture to that of my brokers'?

It looks like there was an adjustment made for some reason, as my unadjusted paid for data for ADVFN shows a big gap down on the 18 September, however a news report for the 18th says "Shares of Barclays PLC (BCS) picked up 0.5%". But the unadjusted data shows that it closed down by 7.2% on the previous day. So something has happened which could be due to new shares being issued which I found a news report saying this:

18 September 2013

Admission of Nil Paid Rights

Barclays announces that, pursuant to the rights issue announced on 30 July 2013 (the "Rights Issue"), 3,219,067,868 New Ordinary Shares of 25 pence each will be admitted, nil paid, to listing on the premium listing segment of the Official List of the UK Listing Authority and will be admitted, nil paid, to trading on the London Stock Exchange's main market for listed securities at 8.00 a.m. today.

So that could be it, but attached are the unadjusted charts from ADVFN showing the actual prices that the stock traded at over the last few years. However, if it has been adjusted for the new shares issued, then the ProRealTime adjusted charts still shows it to be in Stage 3B (also attached).