Bitcoin ETF 流出背後暗藏資金輪動：BlackRock IBIT 贖回真係咁熊？

On June 22, U.S. spot Bitcoin ETFs extended their outflow streak to three consecutive days with a net $68.3 million exit, but the headline figure masks a sharp divergence between two distinct groups of funds — and BlackRock's launch of a covered-call Bitcoin income ETF just days earlier provides a plausible explanation for why some of the largest redemptions may not represent a true bearish bet on Bitcoin.

June 22 daily flows: the split

According to Farside Investors data, the $68.3 million net outflow was driven almost entirely by two funds :

• BlackRock IBIT: –$171.98 million to –$172 million
• Grayscale GBTC: –$80.96 million to –$81 million
• Fidelity FBTC: +$57.4 million
• Ark Invest ARKB: +$64 million
• Grayscale Bitcoin Mini Trust: +$48.1 million

So while IBIT and GBTC together bled ~$253 million, the other major spot ETFs actually attracted ~$121 million in combined net inflows from Fidelity and Ark alone . This is not a broad-based institutional exit; it is concentrated in two specific products.

The broader institutional selling trend

The multi-week outflow streak is historically severe:

• $6.35 billion in cumulative net outflows over the past 30 trading days as of June 21, the largest 30-day capital exit since the products launched in January 2024, per Galaxy Research .
• Six consecutive weeks of net outflows, the longest weekly losing streak on record, with cumulative six-week redemptions reaching $5.94 billion .
• The worst week alone saw $3.4 billion exit in early June , and a separate 13-session losing streak in May–June drained another $4.4 billion .

However, analysts note this looks more cyclical than structural. The selling has been punctuated by occasional inflow days — June 12 saw the first net inflow in weeks — and the divergence between fund flows suggests rotation rather than uniform panic .

Why BITA explains some of IBIT's outflows

BlackRock launched the iShares Bitcoin Premium Income ETF (BITA) on Nasdaq on June 16, 2026 . The fund's structure is key:

• BITA holds a combination of spot Bitcoin and shares of IBIT itself .
• It generates monthly income by selling covered call options on approximately 25% to 35% of its Bitcoin exposure, targeting an annual yield of 15–25% while aiming to capture at least 70% of Bitcoin's upside .
• The SEC registration filing explicitly states the trust's assets "consist primarily of bitcoin, as well as shares of iShares Bitcoin Trust ETF ('IBIT')" .

This means that when an institutional investor redeems IBIT shares and simultaneously buys BITA, it shows up in the daily flow data as an outflow from IBIT — even though the capital remains inside BlackRock's Bitcoin ecosystem, simply shifted from a pure spot product to an income-generating covered-call wrapper. The IBIT outflows reported on June 22 may therefore include a meaningful component of internal portfolio rotation into BITA rather than an outright exit from Bitcoin exposure .

Summary

The June 22 outflow data shows a two-fund problem (IBIT and GBTC) rather than a sector-wide rejection of Bitcoin ETFs, with Fidelity and Ark continuing to attract inflows. The record $6.35 billion in 30-day outflows and six-week losing streak are genuine and historically significant, but the trend is more concentrated and cyclical than the headline suggests. BlackRock's BITA launch on June 16 adds a further nuance: some of IBIT's headline redemptions can be explained by investors rotating into a covered-call Bitcoin income product that itself holds IBIT shares, meaning the capital likely stayed within BlackRock's Bitcoin exposure rather than leaving the asset class entirely.