Originally Posted by
Land-of-Miles
This may be due to the rigours of a US listing (e.g. SARBOX requirements etc). Many companies are delisting from the US and re-listing, or concentrating their listing on the LON Market. There may be no more sinister purpose than this.
This was announced at the Investor's Day. The delisting in the US is to reduce BA's compliance costs. IIRC the savings were in the millions.