The number of Solana validator nodes has decreased by 68% over three years, with small nodes being squeezed out of the market by costs

Data shows that the number of validator nodes on the Solana network has significantly decreased from a peak of 2,560 in March 2023 to the current 795, a drop of 68%, raising concerns in the market about the network's level of decentralization.

Industry insiders point out that, in addition to clearing "zombie nodes," a more core reason is the continuous rise in operating costs + zero-fee competition among large nodes, which is systematically squeezing out small and medium-sized validators. An independent validator node operator stated that many small nodes are not bearish on Solana, but rather that the economic model has become unsustainable: "Without economic viability, decentralization becomes a charitable act." Meanwhile, Solana's Nakamoto Coefficient has dropped from 31 to 20 during the same period, a decline of about 35%, indicating that the control of staked SOL is concentrating in the hands of a few large nodes, reducing the network's level of decentralization.

From a cost perspective: to maintain operation (excluding hardware and servers), a node needs at least $49,000 worth of SOL in the first year; approximately 401 SOL is required annually to pay for voting fees; and daily voting transaction costs can reach up to 1.1 SOL/day. The trend signals are clear: Solana is gradually evolving from a "broad participation node structure" to a structure dominated by large institutional nodes, which may have a profound impact on the network's security structure and governance patterns in the long term.