Aggregate since-inception net inflow into US spot Bitcoin ETFs is a cumulative running sum since the January-2024 launch. As of mid-June 2026, BlackRock's IBIT alone stands near $62B cumulative — and the all-ETF aggregate is materially higher. We lock that aggregate to remain ≥ $45B at the Q3 close. Falling below would require an unprecedented quarter of net outflows; the floor is structural.
Cumulative net flow is the running sum since the Jan-2024 launch. IBIT alone was ~$62.1B cumulative in mid-June 2026, and the all-ETF aggregate is higher. To breach a $45B floor by Sep 30 would require a historically unprecedented net-outflow quarter. P ≈ 92%.
We lock the aggregate since-inception cumulative net inflow across all US spot Bitcoin ETFs to remain at or above US$45 billion as of the September 30, 2026 close. This is a floor on a near-monotonic running total, not a price call.
Since the January 2024 launch, US spot Bitcoin ETFs have accumulated a large positive net-inflow base. As of mid-June 2026, BlackRock's IBIT alone reported roughly $62.1B in cumulative net inflows, and the all-issuer aggregate sits materially above that. Because the metric is a since-inception running sum, it only declines if a quarter's net outflows exceed prior accumulation — which has never happened at this scale.
Sources: Farside Investors BTC-ETF flow tracker, SoSoValue, CoinGlass (mid-June 2026); verified 2026-06-20.
A Bitcoin drawdown could trigger redemptions — but for the cumulative since-inception aggregate to fall below $45B from a base well above it would take a single quarter of outflows larger than any on record. We lock the structural floor, not the price, and set it far enough below the current base to absorb a severe-but-realistic redemption wave.
We take the current cumulative aggregate, stress it by the worst observed quarterly net-outflow rate, and set the lock floor below that stressed value. Scored against the published aggregate on the public flow trackers at the Q3 close.
A miss requires a record-shattering net-outflow quarter — tens of billions exiting in Q3, a scale never seen — likely only in a systemic crypto-market dislocation. ~8% is our honest gap, almost all of it tail-risk.
RAOSCAFF locks P-16 on 2026-06-20. We score the ≥$45B floor against the aggregate since-inception cumulative net inflow on the standard public flow trackers at the September 30, 2026 close.
A since-inception running sum already far above the floor — the lock is structural, not directional.