Among the fields Robinhood publishes for each stock token is a halt flag. Most of the time it is off and nobody looks at it. When it is on, it changes how every other number on that token’s row should be read.
What a halt is
A trading halt is a pause in a stock’s trading. Exchanges halt a stock ahead of major news, during extreme moves, or for regulatory reasons. While it lasts, the stock does not trade and has no live price. The types are described in what is a trading halt, and the market-wide version in circuit breakers and market halts.
A halt usually means something is about to be learned. The price before it and the price after it can be far apart.
What the flag changes
The flag marks the token as halted. The first effect for a reader is on the price. A quote on a halted name is not a live market, and the last price before the halt is old in a way that matters. News may have arrived since. Any midpoint, any tokenized value and any dollar flow built on that price should be treated as stale until the flag clears.
The second effect is on comparisons. A gap between a pool price and a halted quote compares a trade to a reference that has stopped. It is the weekend problem in a sharper form, since a weekend rarely brings news about one company and a halt usually does.
A pool does not know about halts
An on-chain pool is a contract. It trades when someone sends it an order, and it has no link to an exchange’s halt. Where a stock token has a pool, a pool price can exist while the stock itself is paused.
Whether the token can actually be traded or moved during a halt is not something this article can state. That is set by the issuer’s own terms, along with what happens to minting and redemption. Read them for the answer.
If a pool price does form during a halt, read it carefully. It comes from whoever chose to trade with no reference price, in a pool that may be shallow. It can be a real signal of how on-chain traders read the news. It can equally be one small order. Depth decides which, as the quote and the pool explains.
What the flag does not say
It does not say why the stock halted. It does not say when trading resumes or where. It is a single yes or no, and the context has to come from the news.
It does not say anything about supply either. The count of shares on-chain is read from the contract and is as exact during a halt as at any other time.
Reading it in practice
The flag is a reason to slow down. Check it before trusting a price, in the same pass as the spread. A halted token with a wide quote has two separate reasons to distrust its midpoint. Both checks are in the checklist for reading any stock token.
Where to see it
The Stocks On-Chain tab of the Crypto Market Map lists every stock token. A token price that is not the live midpoint is marked with an approximately sign, so a carried price is not mistaken for a live one.