Goldman's Top Derivative Trader Warns Bulls: Flows Were More 'Gross Down' Than 'Net Up'

After a violently two-sided move in markets over the past 10 days or so, Goldman Sachs top derivative trader, Brian Garrett, is optimistic, bullishly positioned, but has some warnings to be wary of before traders wave it in with both hands and feet.

What began as near-capitulatory de-grossing (gs momentum pair had drawn down as much as 45% from the highs through Wednesday afternoon)...

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