Arc Sniper Watch

Every new Uniswap v4 pool on Circle's Arc chain, who bought it first, how many seconds after it opened, and whether they sold straight back. Read from the PoolManager's own events every five minutes. No score, only what happened.

See the pools

Reading the last scan…

Hall of first blood. On 2026-09-16 we opened an APEX/USDC pool with 2 USDC in it. Thirty-three seconds later a bot paid 49.5 USDC for 1.23 million APEX, and 86 seconds after that it sold every one of them back. It left us 0.30 USDC in fees. We built this page the same afternoon. Claim USDC and APEX at /arc/.

Fresh launches, exits checked live (a real buy-and-sell round trip about 12 seconds after each pool opens; quoted where the pool uses the ERC-20 USDC view)

Opened	Token	Verdict	Round trip	Method

Fastest fingers (first buyer within 5 minutes of a pool opening, last 24 h)

Address	Pools	Median	Fastest	USDC spent first

New pools with USDC trades, newest first

Opened	Token	Fee	Swaps	USDC volume	Depth	First buy	What we saw

Machine-readable: /api/arc/pools. How the flags are made is in the code that makes them, not in a table on this page. A flag is a reason, not a verdict.