Blockchain networks for high-frequency trading

Sui's Mysticeti consensus advertises ~300 ms consensus latency, while Sui's September 2026 institutional-finance material reports roughly 390 ms deterministic finality. Its architecture also supports parallel transaction execution, which is particularly interesting for trading workloads.www.sui.io

Aptos is also compelling: its documentation says a transaction is final immediately upon BFT commit, with typical end-to-end latency below one second under normal load.aptos.dev

But there's an important HFT distinction

For high-frequency trading, I wouldn't choose solely on blockchain finality.

The relevant latency stack is:

market-data latency → order submission → sequencing → execution → block inclusion → finality → ability to withdraw/settle

If you're building an actual on-chain market maker, sequencing latency and exchange/DEX architecture can matter more than nominal finality. A 300-ms-finality chain isn't necessarily useful if your order sits in a congested mempool for 500 ms.

Sui is especially interesting because its owned-object fast path can achieve even lower latency than its general consensus path, and the network is explicitly designed for parallel processing.www.sui.io

My ranking for a latency-sensitive crypto trading system:

1. 🥇 SUI — best combination of deterministic sub-second finality + parallel execution.
2. 🥈 APT — extremely fast BFT finality and very low block/transaction latency.
3. 🥉 SOL — exceptional throughput and ecosystem/liquidity, which may outweigh its finality disadvantage in practice.
4. HBAR — impressive throughput and deterministic finality, but ~3 seconds is less attractive for true HFT.hedera.com

If you mean “which token would I actually use for an HFT trading strategy?”, I'd put SOL ahead of SUI in some strategies because liquidity, DEX volume, and execution venues are critical. If the question is strictly fastest deterministic settlement, however, SUI is the stronger answer right now.

If you want, I can also do a 2026 quantitative comparison of SUI vs SOL vs APT vs SEI vs HBAR, including p50/p95 finality, TPS, DEX liquidity, fees, validator decentralization, and MEV/front-running risk.