Fidelity's Center for Applied Technology says Solana has gone more than two years without a major mainnet outage. The same report warns that stake, hosting and client software are concentrated in too few places, which could create systemic risk under heavy transaction load.
Solana has gone more than two years without a major mainnet outage, according to a new report from Fidelity's Center for Applied Technology (FCAT). But the same report flags weak spots in how the network's stake is spread out.
The report, titled "The State of Solana: Network Health and Resilience," was published on October 16, 2026. Mia Galvin and Kevin Kelly wrote it.
Uptime and vote success rate
FCAT says Solana has not had a major mainnet outage since February 6, 2024. The report also puts the network's vote success rate at approximately 99.7% in 2026.
Tokenized real-world assets on Solana grew from about $1 billion to $4.4 billion year over year, according to FCAT. Meanwhile, the report says Solana processed more than $2 trillion in stablecoin volume in the first quarter of 2026 alone.
Four areas of concentration
However, the report points to concentration. About 18 validators together control enough stake to halt finality, FCAT reports, citing third-quarter 2026 data. Halting finality takes one-third of stake.
Hosting is the second concern. A single hosting provider controls nearly 29% of total stake, according to the report, and FCAT notes that this exceeds acceptable limits set by the Solana Foundation.
Geography is the third issue, as roughly 40% of stake sits in Frankfurt and Amsterdam. Client software is the fourth. About 63% of stake runs Jito-Solana and about 26% runs Harmonic, the report says, and FCAT notes that both are linked to the dominant Agave codebase.
Judging health beyond validator counts
FCAT's main argument is about method. The authors say network health should be judged by more than the number of validators, and the report recommends watching stake distribution, geographic spread and client diversity together.
FCAT warns that these concentration factors could create systemic risk under heavy transaction load.
Source: Crypto Briefing
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