Quote from naifwonder:
Under this assumption, the market would never move, or barely ever move. As a reaction to a considerable amount of trades in one direction entering at specific price levels in a limited period of time, either directly or planning to do so through options, the market will move in one direction by a certain amount without an equal amount of retracement in an equal amount of time. This is why the market moves.
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well, more volume usually means more movement, no? i mean any gap will be closed by people making money out of the difference in roll-over arbitrage thing.
i don't think the ES moves the SPX