Unlike other crypto assets, the weekly high for SOL was set on Friday, when it reached an intraday high of $122.85.
Solana-related ETFs recorded their best week ever, with a record $188.21 million of inflows. This extended a weekly inflows streak to 12 weeks.
The largest inflow for the week, $86.7 million, occurred on Friday. For the week, Bitwise's BSOL fund accounted for 68% of the week's flows.
The upgrade for Solana, dubbed Alpenglow, is scheduled to be completed on September 28th. This will achieve near-instant finality for Solana transactions.
SOL finished at $111.06 on September 20, and by the end of the day on Monday, it had risen to $118.96, a gain of 7.02% and its highest level since January. The rest of the week brought further moves. Here's what happened next.
Monday, September 21: Rally to January Levels
SOL opened at $111.19 and quickly moved higher, closing the day at $118.96, a gain of 7.02% and an intraday high of $119.96. The move was coincident with a broader market rally that lifted Bitcoin to more than $87,000. Solana ETFs also opened the week with more than $26 million in new capital, with the Bitwise ETF (BSOL) receiving more than $14 million of that capital.
SOL pulled back slightly, losing 0.34% and closing at $118.56. Solana ETFs continued to see new capital, with more than $28.9 million in new capital on the day.
Wednesday, September 23: Sharp Pullback
SOL lost 2.99% and closed at $115.01, its steepest single-day decline of the week. ETF capital inflows for SOL also pulled back to $13.7 million, the smallest of the week, though the streak stayed unbroken.
SOL gained 1.77% and closed the day at $117.05. ETF capital inflows more than doubled to $32.8 million.
September 25th: the Week's Best Day
Solana got a strong day this Friday, shooting up 4.37% and closing at $122.16. It touched an even higher intraday high of $122.85, the actual peak for the entire week. ETFs focused on Solana also shot up with investors pumping in a record $86.7 million in a single day. This brought the week's total to $188.21 million.
SOL/USD daily closes, 21 to 27 September 2026
Solana eased back for the rest of the week. Bitcoin saw its own Iran-related volatility this weekend, while broader crypto markets stayed relatively quiet. Solana slipped slightly off its weekly high, closing Saturday at $121.45 and Sunday at $121.39. One company also disclosed it bought 101,381 SOL, worth more than $10 million, pushing up its holdings to about 2,490,600 SOL.
US Spot Solana ETF Net Daily Flows, 21 to 25 September 2026
What Alpenglow Means, After This Window Closes
We are now just one day away from Solana's Alpenglow upgrade. We reported on this upgrade last week and put the target date for this upgrade as the 28th of September. This particular upgrade improves the finality of transactions on the Solana blockchain by reducing the time required for a transaction to be finalized from 12.8 seconds to just 150 milliseconds. The improvement in finality would make Solana's settlement time virtually instantaneous. Final validation of the upgrade continued on the Solana public test network through the last week of September.
What this means
From its Monday low of $110.88 to its Friday high of $122.85, SOL rose by 10.80% over the course of the week. The improvements in the ETF of Solana-based assets this week have also gained more attention than both Ether and Bitcoin's own ETF weeks in relative terms. During the week, the ETF gained $188.21 million and extended its inflow streak to 12 weeks. Friday was the best day for the ETF since its inception. Improvements in the ETF and the approaching Alpenglow upgrade mean SOL has many positive forces at work.
This report is being released on September 27th. Prices and figures are sourced from Investing.com, CoinGecko, Farside Investors, Invezz, CryptoPotato, U.Today, COINOTAG, CoinGabbar, and OpenPR reporting.
India Crypto Research operates independently. The information presented herein is intended solely for educational and informational purposes and should not be construed as financial advice. Before making any financial decisions, it's essential to undertake your own thorough research and analysis. If you're uncertain about any financial matters, we strongly recommend seeking guidance from an impartial financial advisor.
