Bitcoin ETF flow breakdown — September 2026, 4 trading days in:

Sep 1: -$236.5M
Sep 2: +$101.1M
Sep 3: +$730.9M
Sep 4: +$174.6M
Net: +$770.2M

August closed with $3.52B in net inflows, the strongest month of 2026. September opened choppy but the trend is still net positive. Watching whether today adds to or breaks that streak.
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