For everyone dismissing this as a small play for BH it's not that small also we have no clue about other possible elements of this position (e.g. derivatives, options etc.).
That logic works the other way also (ie: it could just be some huge long in the stock to arb an options position and therefore be a $0 exposure to Apple stock). Disclaimer: I am not an options market maker so I'm unsure if you can realistically do a delta hedge on 1bn of AAPL.
