For the frozen window from 13:02:00 to 23:37:42 UTC, this address submitted 46,767 transactions. Its complete history is remarkably narrow: 19,564 limit-order placements, 19,446 cancellations, 7,568 order resets, 62 native-coin consolidations, and 28 owner-authorized placement attempts. The repetition is consistent with automated quoting or order maintenance. It does not establish who operated the address, who owned the trading account, or whether the activity was profitable.
Rhythm and failure
Across the complete history, the median gap between transactions was 0 milliseconds because many actions arrived in the same batches; the mean gap was 816 milliseconds and the 90th-percentile gap was 1.09 seconds. The busiest minute was 18:08 UTC, with 288 transactions. The longest idle period was about 4 minutes 29 seconds, while the longest uninterrupted run of successful executions was 676 transactions.
There were 1,823 failed transactions out of 46,767 eligible transactions, or 3.90%. Most failures—1,697, or 93.1% of failures—stopped at DeepBook’s big_vector::leaf_remove. Another 88 stopped at order_info::assert_execution, and 31 at order_info::match_maker. The package analysis says a failed cancellation can reflect a stale or incorrect order ID; the stored evidence does not distinguish those cases.
The latest-500 stream covers only the address’s final activity, from 23:29:14 to 23:37:42 UTC. It contains 193 placements, 171 cancellations, 135 resets, and one coin consolidation. Twelve of those 500 transactions failed, all at the same big_vector::leaf_remove location. In 5Lt8EKCK, the address prepared a delegated-trader proof, reached an order-cancellation call, and aborted there; the replacement call did not run, application changes were rolled back, and only 0.000733424 SUI of gas remained as a sender-level outflow.
What the repertoire shows
The dominant placement flow uses delegated-trader authorization against a DeepBook account. In HpeipnEh, the transaction placed a 1 WAL order on the WAL/USDC book at 0.028747 USDC per WAL. Its stored meaning says the order remained open on the book, so this is evidence of resting exposure—not an executed exchange.
The reset flow combines cancellation with a proposed replacement. In FofM3JrA, the transaction cancelled an identified order with 2 SUI of resting size and submitted a replacement at 0.7472 suiUSDe per SUI. The call names do not prove that the replacement entered or remained on the book. The 62 coin-consolidation transactions are a small representation change in the address’s native coin objects, not a separate trading strategy.
The bounded money story
For the complete history, the sender-level movement record contains only SUI and has no omitted movement sources. Gas accounting records 69.384807676 SUI out and 0.151894808 SUI in, for a net of −69.232912868 SUI. A parallel holding record reports the same SUI totals; those are two accounting views of the same evidence and must not be added together.
The WAL, USDC, and suiUSDe quantities appearing in order inputs describe prices or order sizes. They are not, by themselves, proof that those assets were spent, received, exchanged, or earned. The available evidence therefore supports a picture of intense DeepBook order maintenance funded by SUI gas, not a profit calculation or realized trading volume.
Follow the trail
The address is 0x1a66b986…28841dd. Representative transactions include HpeipnEh for a resting placement, FofM3JrA for a cancellation-and-replacement attempt, and 5Lt8EKCK for the repeated cancellation failure. The reusable interpretations are sui/place-limit-orders/deepbook-trader-proof/v1, sui/cancel-order/deepbook-trader-proof/v1, and sui/reset-orders/deepbook-trader-proof/v1.