Solana ETFs Notch 12-Week Inflow Streak as BSOL Leads

What happened: a 12-week Solana inflow streak while Bitcoin went quiet

US spot Solana ETFs have now strung together 12 consecutive weeks of net inflows, a run that has pulled in more than $1.4 billion and lifted category assets under management to roughly $1.62 billion, according to Solana Compass and reporting by CryptoBriefing (via TradingView). The week ending Sept. 18 was a standout: about $60.7 million of net creations, with nearly half—$47.6 million—arriving on the final trading day alone.

The contrast with Bitcoin is stark. Over that same week, US spot Bitcoin ETFs took in only about $6.1 million—the smallest weekly inflow in the products' 141 weeks of trading since their January 2024 launch, with five-session volume sinking to its lowest since October 2024 (KuCoin, citing the same data). The flows then re-accelerated into this week: SOL spot ETFs added $13.77 million on Sept. 23 and $32.8 million on Sept. 24 (KuCoin). You can watch the listed Solana futures product on its live page, SOLT, and compare it against the Bitcoin flagship IBIT.

Where the money went: BSOL's staking fund dominates

The Solana flow story is really a single-fund story. Bitwise's BSOL—a *staking* ETF that passes SOL staking rewards through to shareholders—has captured roughly 80% of all Solana ETF inflows, per CryptoBriefing. It became the first dedicated Solana ETF to cross $1 billion in AUM in late August 2026, about ten months after launching in late October 2025 (The Block; Crowdfund Insider).

The daily tape shows the concentration continuing:

After Sept. 24, BSOL's AUM stood near $1.162 billion and Fidelity's FSOL near $228 million (KuCoin). The pattern echoes what we've seen elsewhere in crypto ETFs, where flows gravitate to the deepest, most feature-rich product—but here the differentiator isn't just liquidity, it's the staking yield.

Two things moving at once: price and flows

SOL's spot price has firmed alongside the creations, climbing roughly 10% over the past week to a three-month high, while SOL futures open interest rose from about $5.9 billion on Sept. 17 to roughly $6.92 billion (Invezz). As always, it is worth separating the two engines:

• ETF creations are asset-backed and add to the SOL the fund custodies (and, for BSOL, stakes). They are a durable, balance-sheet demand signal.
• Rising open interest is leverage building in the derivatives market—faster to move and faster to unwind.

When both rise together, a rally can look stronger than the underlying spot bid alone would justify. The cleaner tell is the flow table: twelve straight weeks of creations is a more meaningful signal than any single price candle.

What it means for investors

For ETF holders, the mechanics of a *staking* fund like BSOL change the read in ways a plain spot fund does not.

1. The yield is baked into NAV, not paid as a coupon. BSOL stakes its underlying SOL and reflects the rewards inside the fund's net asset value rather than mailing a dividend. That means part of the fund's total return accrues continuously in the NAV—so comparing BSOL's price change to spot SOL alone will understate its economics. If you want a refresher on why the traded price can drift from the underlying value of the holdings, see our note on NAV premium and discount.

2. Creations, not price, are the demand tell. A day when SOL rips on liquidations but the funds see net *redemptions* is weaker than a quieter day with heavy creations. The 12-week streak—and BSOL's ~80% share of it—says institutional demand is concentrated and sticky, not scattered. Our deeper look at the structure is in Solana ETFs and the institutional staking outlook.

3. Mind the overnight gap. SOL trades 24/7 while US-listed ETFs are closed, so a fund that closed before an overnight move can gap at the next open. That window is exactly what our estimation engine is built for; our pre-market ETF trading guide walks through sizing around these gaps. For a staking fund, remember the accruing yield is a small, steady tailwind layered on top of the price gap—not a reason to expect the ETF to open exactly in line with spot SOL.

None of this is advice. It is a reminder that with a staking ETF, the plumbing—creations, the staking pass-through, and the pre-market gap—tells you more than the headline price print.