TLDR:
- SIMD-550 and SIMD-553 could cut Solana issuance by $1.4B-$1.5B over six years, per 21Shares.
- Daily SOL burns could jump from about 600-800 SOL to 7,500-9,000 SOL under SIMD-553’s fee.
- Solana staking yield could fall from near 5.25% to roughly 2.25% by year three under SIMD-550.
- Solana’s 67.93% staking ratio runs nearly double Ethereum’s 34.14% ratio, per 21Shares data.
Solana is advancing two governance proposals that could reshape SOL’s supply dynamics over the next several years. The changes, known as SIMD-550 and SIMD-553, target protocol inflation and transaction-based burns.
Together, they are projected to cut Solana’s issuance by $1.4 billion to $1.5 billion across six years, according to data from 21Shares. The shift would also sharply raise daily SOL burns while compressing staking yield for validators and holders.
How SIMD-550 and SIMD-553 Reshape Solana’s SOL Supply
SIMD-550, proposed by Solana infrastructure firm Helius, doubles the network’s annual disinflation rate from -15% to -30%. That change moves Solana’s path to its 1.5% terminal inflation rate up from around 2032 to the first half of 2029.
Nominal staking yield is projected to fall alongside the faster disinflation curve. According to 21Shares, yield could drop to roughly 4.34% in year one and near 2.25% by year three.
SIMD-553, submitted by Solana research firm Temporal, was approved and merged on July 20. It introduces a burn fee tied to compute units used in financial transactions on the network.
Daily SOL burns could climb from roughly 600 to 800 SOL currently to between 7,500 and 9,000 SOL under the new structure. That range equaled between $712,500 and $855,000 in daily value as of August 24, based on 21Shares figures.
Combined, the two proposals are projected to reduce issuance by $1.4 billion to $1.5 billion over six years. The final outcome still depends on the SIMD-550 vote and validator fee design under SIMD-553.
What the Yield Compression Means for Solana Holders
Solana’s staking yield currently sits near 5.25%, drawing from protocol inflation, transaction fees, and MEV revenue. Protocol inflation makes up the largest share at roughly 3.78%, according to 21Shares.
A drop from about 6% to near 3% within two years would roughly halve staking income per SOL. Validator economics add another layer of uncertainty, since SIMD-553’s fee design for validators remains unresolved.
Under current projections, two of Solana’s 738 validators would turn unprofitable in year one. That figure could climb to 30 validators by year three if fees rise as expected.
Solana’s staking ratio stands near 67.93%, nearly double Ethereum’s 34.14%. Lower yield is designed in part to push capital out of staking and into DeFi activity across the network.
Comparable upgrades offer some historical context. Ethereum’s EIP-1559 burn mechanism gained 37% in the month after its August 2021 launch, while Cosmos’s Proposal 848 rose 25% in the month following its November 2023 passage.
Both moves also coincided with broader market strength, so the upgrades were not the only factor behind those gains.
