Solana ETFs Post Record $188M Weekly Inflow

Highlights

US spot Solana ETFs drew about $188.2 million in net inflows over the week of September 21 to 25, their largest week since launching in late October 2025.
Friday alone brought in $86.67 million, more than 2.5 times the previous single-day record of $33.5 million set in August.
Bitwise's staking fund BSOL took more than $110 million of the week's money and $55.73 million of Friday's.
Cumulative net inflows across the category now stand at roughly $1.6 billion, with assets near $1.96 billion.

Four weeks ago, $153.87 million looked like a ceiling for US spot Solana ETFs. That number is now the second-best week on record.

The funds pulled in roughly $188.2 million in net new money across the five trading days ending September 25, according to SoSoValue flow data. Monday through Thursday accounted for $101.55 million. Then Friday delivered $86.67 million on its own, a single session that nearly matched the rest of the week combined and set a new daily record for the product category by a wide margin.

The previous daily high, $33.5 million, was set only in August. Friday's print was about 2.6 times that. It also extended the category's inflow streak to 13 consecutive weeks, a run stretching back to late June that survived the sharp drop-off in early September, when weekly inflows collapsed to about $6.18 million right after the late-August peak.

One fund is doing most of the lifting

Almost all of the momentum traces back to a single product. Bitwise's Solana Staking ETF, BSOL, absorbed $55.73 million on Friday, about two-thirds of that day's total. Over the full week it took in more than $110 million, a figure Bitwise CEO Hunter Horsley confirmed publicly while remarking that many investors “seem to be thinking Solana looks good.”

BSOL has now gathered about $1.22 billion in cumulative net inflows since it launched on October 28, 2025. Against a category-wide total of roughly $1.605 billion, that is close to three quarters of every dollar that has entered US spot Solana ETFs. Grayscale's GSOL was a distant second on Friday with $18.47 million, lifting its own cumulative figure to about $164 million. Fidelity's FSOL and Morgan Stanley's MSOL added smaller amounts.

Why the concentration? Part of the answer is yield. BSOL holds SOL directly and stakes the whole position; as of September 23 it listed a gross staking reward rate of 5.88% and a net rate of 5.52% after costs, with a 0.20% sponsor fee. That gives allocators something a spot bitcoin fund cannot offer, which is a native return layered on top of price exposure. Bitwise also runs its own validator, which ranked fifth on Solana by delegated stake on September 25 with about 10.6 million SOL, or roughly 2.4% of the network's total stake.

How big is this, really?

In absolute terms, the Solana complex is still small next to the bitcoin products. Total assets across US spot Solana ETFs came to about $1.964 billion after Friday, which SoSoValue puts at around 2.75% of SOL's market capitalization. For comparison, US spot bitcoin ETFs have repeatedly logged single weeks close to $1 billion this cycle, including the run that pushed BTC above $87,000.

But the relative picture is different. The category is less than a year old, and its best week has now grown by more than 20% in a month. The daily record more than doubled. Big distributors are also on the shelf now; Morgan Stanley, which offers MSOL, has been steadily building its own bitcoin ETF position through Coinbase Prime, a sign that wirehouse-scale platforms are treating crypto funds as a standing product line rather than an experiment.

The flows also landed while SOL traded near $120, well below its prior-cycle highs. Buying on that scale into a token that has not yet run hard reads more like allocation than momentum chasing, although one week of data cannot settle that question.

What could stall it

Concentration cuts both ways. With one issuer responsible for most of the demand, a pause in BSOL buying would show up immediately in category totals, much as the early-September slump did. It is also worth separating fresh capital from rotation. When Grayscale's Zcash product crossed $1 billion in assets, a large share of that turned out to be converted trust holdings rather than new money. Solana is not immune to the same question: GSOL itself began life as a Grayscale trust before converting, so separating genuinely new capital from repositioned holdings will matter more as the category grows.

The next checkpoints are straightforward. The first is whether total assets clear $2 billion, a threshold that sits only about $36 million away and one that could draw in allocators who have been waiting for the category to mature. The second is whether the 13-week streak survives into October. The third is whether demand broadens beyond Bitwise. If GSOL, FSOL and MSOL start posting meaningful daily numbers of their own, the record set this week is unlikely to stand for long.