Alpenglow on October 21: What it means for the Solana price

Published on 10/20/2026 at 18:51 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Validators face a 0.8 SOL admission fee. The Solana price is 101.12 USD on October 20, 2026, down 2.93 percent.

Epoch 1064 upgrade

The network change is scheduled for epoch 1064 on October 21, 2026, with a 150-millisecond finality target.
Validator admission will require a 0.8 SOL fee under the migration plan.
The Solana price stands at 101.12 USD as of October 20, 2026, 2.93 percent below the UTC daily close of October 15, 2026.
U.S. spot Solana funds recorded 25.5 million USD in net outflows through October 16, 2026.

Solana, XCCRYPTOSOL6, Illustration mit AI erstellt.

Solana (SOL) is scheduled to activate its Alpenglow consensus upgrade on October 21, 2026, with a 150-millisecond finality target, according to CoinDesk. The Solana price is 101.12 USD as of October 20, 2026, down 2.93 percent compared with the UTC daily close of October 15, 2026, according to Investing.com.

Alpenglow sets a 150-millisecond target

Alpenglow is designed to replace TowerBFT, Solana's existing validator voting system. Validators are computers that check transactions and help secure the network. The upgrade moves validator votes off-chain and combines approvals into certificates intended to finalize blocks faster, CoinDesk reported in its October 14, 2026, report linked above.

The migration is scheduled for epoch 1064 on October 21, 2026. An epoch is a period during which Solana assigns network responsibilities to validators. CoinDesk reported that validators need software built on Agave 4.3.0, while the admission charge will be 0.8 SOL per epoch. Solana will retain the existing voting system for the first 5,000 slots before the handoff, the report said.

ETF funds record 25.5 million USD in outflows

U.S. spot Solana exchange-traded funds recorded 25.5 million USD in net outflows across the five sessions through October 16, 2026, according to EconoTimes. The report, citing Farside Investors' daily flow table, said withdrawals occurred in all 10 sessions from October 5 through October 16, 2026.

The fund-flow figure measures cash moving into and out of the products and does not identify who sold fund shares or what prompted the transactions, EconoTimes reported on October 18, 2026. CoinDesk separately reported that removing validator votes from blocks could sharply reduce Solana's reported transaction count on October 21, 2026, even if user activity remains at the previous pace.

SOL data as of October 20, 2026

According to Investing.com, SOL trades at 101.12 USD as of October 20, 2026. It is down 2.93 percent compared with the UTC daily close of October 15, 2026. The daily high is 104.71 USD and the daily low (UTC day) is 100.50 USD. Market capitalization is 59.45 billion USD, ranking Solana seventh, while 24-hour volume is 1.97 billion USD. Circulating supply is 589.44 million SOL.