DeFi Development adds 3,983 SOL: What it means for the Solana price

Published on 10/21/2026 at 19:22 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS

Alpenglow targets 150-millisecond finality on October 21. The Solana price is 106.741 USD on October 21, 2026, up 1.95 percent.

Institutional activity and network metrics

On October 19, DeFi Development reported adding 3,983 SOL and SOL equivalents to its treasury.
Alpenglow targets 150-millisecond transaction finality for Solana's consensus system.
The Solana price stands at 106.741 USD as of October 21, 2026, 1.95 percent above the UTC daily close of October 20, 2026.
U.S. spot Solana ETFs recorded 25.5 million USD of outflows through October 16.

Solana, XCCRYPTOSOL6, Illustration mit AI erstellt.

Solana (SOL) is the asset behind a 3,983 SOL treasury addition reported by DeFi Development Corp. on October 19. According to WBOC, the company said its holdings reached approximately 2,590,266 SOL and SOL equivalents. The Solana price is 106.741 USD as of October 21, 2026, up 1.95 percent compared with the UTC daily close of October 20, 2026.

DeFi Development reports October accumulation

DeFi Development described the increase as part of its Solana treasury strategy in an October 19 announcement carried by WBOC. The reported weekly addition was 3,983 SOL and SOL equivalents, while the total balance was approximately 2,590,266 SOL and SOL equivalents. The company update came ahead of Solana's Alpenglow consensus upgrade scheduled for October 21.

Alpenglow is a protocol change to the system validators use to agree on transactions. CoinDesk reported that the upgrade targets finality of about 150 milliseconds, compared with roughly 12.8 seconds under the previous voting system. The report also said the migration is scheduled for epoch 1064 on October 21, with validator software preparation required.

Fund flows and active addresses diverge

U.S. spot Solana ETFs, funds that hold the asset directly, recorded 25.5 million USD in net outflows across the five sessions through October 16, according to EconoTimes. The report said withdrawals occurred in all 10 sessions from October 5 through October 16, while October 2 was the only inflow day during the broader period.

Network activity showed a different dated measure. A SolanaHub recap reported 1.88 million unique active addresses on October 9, described as a 13-month high. The two figures cover different parts of the ecosystem: ETF flows measure fund creations and redemptions, while active addresses count network participants.

SOL market data on October 21

The Solana price stands at 106.741 USD as of October 21, 2026, 1.95 percent above the UTC daily close of October 20, 2026, according to Investing.com. The daily high is 107.999 USD and the daily low (UTC day) is 103.684 USD. Market capitalization is 62.83 billion USD, ranking Solana seventh, while 24-hour volume is 2.67 billion USD. Circulating supply is 589.55 million SOL.