Solana Completes Upgrade, Target Slot Time Reduced to 200 Milliseconds

Impact level

⚪ Background

⚠ Risk:Shorter block intervals do not mean transaction confirmation times will be cut in half, nor do they justify concluding that SOL will break above $125.

What happened

According to an October 11 report, Solana completed a phased upgrade on October 9, lowering the target slot interval from 400 to 200 milliseconds; the measured average from October 9 to 10 was 218.3 milliseconds. U.S. spot Solana ETFs saw net outflows of $24.8 million from October 5 to 9. Samsung plans to introduce USDC transfers for eligible U.S. Wallet users later in October; the specific date is unknown. [1]

Involves:Solana（SOL）、USDC、Samsung Wallet

Seller impact

• InferenceOn the capital-flow front, ETF net outflows indicate weakening recent demand through that channel, but do not represent demand across the entire market. The technical upgrade and capital flows may have opposing effects, so there is not enough evidence to conclude that SOL will continue rising; review capital flows again over the next two weeks. [1]
• InferenceOperationally, for sellers using the chain to send or receive payments, more frequent block production may improve the wait experience. However, confirmation times, transaction fees, and conversion costs were not provided, so it cannot be concluded that settlement costs or cash tied up in the process have also decreased. [1]

Evidence that would disprove the assessment

• Assessment 1：If ETFs return to sustained net inflows over the next two weeks, the assessment that demand through this channel has weakened will no longer apply.
• Assessment 2：If measured confirmation times for comparable transactions have not shortened over the next two weeks, the inference that the wait experience has improved does not hold.