IBIT Hits 734,762 BTC as BlackRock July Inflows Push Polymarket Odds to 60.5%

The BlackRock iShares Bitcoin Trust (IBIT) added $116M in inflows on July 21, 2026, continuing a reversal of flows tied to the May–June outflow streak, which saw IBIT shed roughly $3.3 billion.

The purchase was likely facilitated through IBIT’s iShares Bitcoin Trust (IBIT) ETF and represents one of the more consequential single-session inflow prints since the fund’s recovery arc began on July 2.

This ETF data drop comes as Bitcoin surged above $66,000, currently trading for $66,300 with a +3.5% daily gain and a 24-hour trading volume of $31.5Bn.

Blackrock IBIT Bitcoin Flow Reversal Mechanics: The $3.3Bn Outflow Streak and What the July Recovery Arc Reveals

The $116M July 21 inflow comes after the May–June outflow cycle that was followed by a return to net inflows. According to CoinGlass data, US spot Bitcoin ETF outflows totaled $2.73Bn over a 10-day streak that ended on July 2.

IBIT accounted for approximately $3.3Bn in redemptions during the broader May–June cycle. Weekly outflow volumes compressed from approximately $2Bn at the streak’s peak to roughly $700M as BTC recovered above $64,000.

The reversal sequence unfolded in three identifiable phases. The first positive session on July 2 produced $216M in net inflows across US spot Bitcoin ETFs; July 6 followed with $294.8M; and July 7 saw Blackrock IBIT post a single-day inflow of $187.2M, bringing its total to $209.4M, its largest print in weeks.

This drove total cross-fund inflows to $265.7M over a two-day window, per CoinGlass. The three-session window from July 2 through July 7 yielded approximately $510.7M in cumulative net inflows, establishing the structural case that the outflow streak had exhausted itself rather than merely paused.

Macro Backdrop and Institutional Context: How Softening Rate Expectations Are Channeling Capital Back Into Spot ETF Structures

BREAKING : 🇺🇸 BlackRock ETF has bought $116,500,000 worth of Bitcoin.

They have been buying Bitcoin for 5 consecutive days. pic.twitter.com/Pkh3rt191Y

— Ash Crypto (@AshCrypto) July 21, 2026

The May–June outflow cycle was structurally driven by sustained upward pressure on 10-year Treasury yields, which elevated the opportunity cost of holding non-yielding assets like Bitcoin and triggered tactical de-risking among institutional allocators who had built positions through IBIT during the fund’s earlier accumulation phase.

The transmission channel now operating in the opposite direction runs through softening rate expectations, reducing the relative yield penalty for Bitcoin exposure, combined with BTC prices sitting approximately 20% below mid-May highs, a price point that institutional allocators appear to be treating as a tactical re-entry level.

IBIT’s scale means this re-engagement is not frictionless: at 734,762 BTC and an approximate AUM of $76Bn, even modest percentage-of-AUM inflows translate to nine-figure daily acquisition volumes that visibly move the structural supply-demand balance.

Butterfill characterized the early July inflows as the largest since the outflow cycle began in early May, describing the current window as a repair observation phase rather than a confirmed recovery, a distinction that remains relevant as the July 21 print extends, but does not yet definitively confirm, the inflow trend.

$67,500 as the Pivot Level: What Sustained IBIT Inflows and Polymarket Repricing Mean for Bitcoin’s Next Move

People keep saying it can't keep playing out the same, but $BTC is still closely following the 2022 pattern.

Price now pushing towards $67k – right on queue.

Max fear bottom towards the end of Q3, before kicking off the new bull early next year?

Bring it on. pic.twitter.com/QVYxTHBR8V

— Jelle (@CryptoJelleNL) July 21, 2026

The bull case hinges on sustained IBIT inflows through July, supported by macro data such as inflation trends and Federal Reserve guidance, with the potential to reach $67,500.

Conversely, the bear case involves a resumption of outflows, in which a large redemption could prompt a reassessment of the current recovery as just a short-term bounce, especially if SEC regulatory actions introduce uncertainty for spot ETFs.

MEXC analysts have set $70,000 as the level indicating a full structural reversal, with only a 23.5% probability according to Polymarket data.

The base case anticipates consolidation between $64,000 and $67,500 as market participants evaluate whether recent inflows signal lasting institutional interest or merely tactical dip-buying, while keeping an eye on any SEC developments that could affect ETF structures.

Disclaimer: The author does not hold or have a position in any securities discussed in the article. All stock prices were quoted at the time of writing.