Binance is delisting the perpetual contract PTB/USDT. The announcement is dated October 21, 2026. Among the venues we cover the coin also trades on 5 more, and their prices are 7.34% apart.
Where it trades right now
| Venue | Bid | Ask | 24h volume |
|---|---|---|---|
 KuCoin | 0.000112 | 0.000114 | $123K |
 Gate | 0.0001125 | 0.0001128 | $106K |
 Toobit | 0.0001117 | 0.0001133 | $92K |
 WEEX | 0.0001062 | 0.0001073 | $69K |
 MEXC | 0.0001119 | 0.0001135 | $57K |
The gap between venues
Cheapest on WEEX, dearest on Gate, 7.34% apart. Those are quotes, not profit: two sets of fees, the transfer and slippage all come out of it.
What this coin is
Portal to Bitcoin is a token trading under the ticker PTB. The project is classified under "Infrastructure". It runs across 2 chains, Ethereum being the main one. Market capitalisation is $1.3M, ranking 2713 by that measure. 2.1B are in circulation out of 5.3B. The all-time high was $0.081616, reached on September 8, 2025.
Contract address: 0x30a25cc9c9eade4d4d9e9349be6e68c3411367d3. This is the only reliable way to confirm you are buying this coin rather than a namesake: tickers are not unique in crypto.
Deposits and withdrawals
Venues open trading before transfers more often than you would expect. What they state right now:
| Venue | Chain | Deposit | Withdrawal |
|---|---|---|---|
| KuCoin | Ethereum | open | open |
| Bitget | Ethereum | closed | open |
| Gate | Ethereum | open | open |
Transfers are open everywhere we looked.
Contract address
The same ticker routinely covers different tokens on different venues, and buying "the same coin" on the wrong chain or at the wrong address does not come back. These are the addresses by which the exchanges we collect from identify this coin:
| Chain | Address |
|---|---|
| Ethereum | 0x30a25cc9c9eade4d4d9e9349be6e68c3411367d3 |
Check the address before you buy and before you transfer. A matching name and ticker mean nothing: anyone can issue a token under any name, and most fakes are built on exactly that.
What matters here
After the pair is removed the coin will still trade on 5 of the venues we cover, so there will be somewhere to trade it. What matters is different: the trading halt and the withdrawal cut-off do not fall on the same day, and missing the second leaves you with an asset you can neither sell nor move.
The venues are 7.34% apart, which is a lot for a coin with live volume. A gap that wide usually does not last and means transfers are obstructed somewhere: withdrawals closed, a slow network, or different contracts sharing a ticker. Check transfers before counting profit.
Exchange announcement
The primary source, with dates and conditions: Binance ↗
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