Yes the tradingview subscription seems to be ASX data - however I thought this would only change the volume not the price - especially with a large cap company (is IAG still a large cap lol?).
Are you able to confirm the OHLC prices for that one bar on 20/11/12 just so as I know which data is 'correct' and should be relied on - the current action is the mostly the same excluding volume on both data sources but the historical data differs?