Nightjar
Chain 4663 · Robinhood Chain · read-only

The exchange is shut. The token isn't.

Tokenised equities keep trading after the bell, against a reference price nobody has re-agreed since. Nightjar reads four things — session state, trading halts, oracle freshness and pool execution cost — and says what each of them actually supports.

Session
Pre-market
Eastern time
05:47
Shut for
2d 13h
Next open
08-10 09:30
00:0004:0009:3016:0020:0024:00
Regular 09:30–16:00Extended 04:00–09:30, 16:00–20:00Shut
Execution cost, not depth

Every official pool charges 509.50 bps before a single unit of impact.

That is 5% to the liquidity providers and 0.1% to the protocol, composed the way Uniswap v4 composes them rather than added. So “how much fits inside 50 bps” is zero at every size and always will be. The question with an informative answer is the inverse: given a size, what does it cost — and how much of that is fee versus curve.

Fee floor
509.50
bps · unavoidable at any size
AAPL at 0.1 ETH
518.08
bps · climbs past 1100 by 3 ETH
MSFT at 0.1 ETH
9944.58
bps · liquidity-starved, not a venue
Verified against
0.0000%
disagreement with the on-chain quoter
Four readings

Each one can fail on its own, and says so.

Session
pre

Computed from an embedded exchange calendar. Holidays are derived from their rules, so Good Friday and half-days are handled. No network, no failure mode.

Halts
two feeds

Nasdaq and NYSE, reconciled across symbologies. A feed that failed is never reported as a feed that returned nothing.

Oracles
five feeds

No feed here publishes a heartbeat, so age is judged against the session instead. Overnight silence is correct behaviour, not a fault.

Pools
seven v4 pools

Read straight out of PoolManager storage at one pinned block. Two hold no liquidity at all, and both say which kind of empty they are.

Five verdicts

UNKNOWN is an answer, not a failure to load.

When a reading a verdict needs is missing, the honest result is UNKNOWN, and the response names which reading. It never falls through to SAFE. Of the eight symbols, four are UNKNOWN right now — three because nothing on this chain prices them, one because its pool holds no liquidity.

SAFE
3
WIDE
1
STALE
0
HALT
0
UNKNOWN
4

Read-only. No wallet, no writes, no guessing.

Every number on this site came from one block, and every page says which. Nothing is computed in the browser: the cost arithmetic is verified wei-exact against the chain's own quoter, and a second implementation here could only disagree with it.

block 32604072as of 2026-08-10T05:47:32-04:00exposure 2d 13hchain 4663