"This could be the most unusual expiry day I can remember since then....in terms of market action, and calls in the money."
It was options expiry day today, as indicated in Lemetropolecafe yesterday. I have been following the battle for 950 the entire (for me) afternoon and I can tell you it was heavy at the sight of it (don't know any volumes).
Later this week the (even more) important OTC options expiry. Thursday or Friday, again I don't know.