New: Upbit Caution & Delisting Alerts

May 3, 2026

Last updated 2026-05-03

Your Upbit feed now carries two trade-actionable risk events alongside listings: caution_released (caution designation lifted, often a positive technical signal) and spot_delisting (final removal from spot). Both travel over the same WebSocket connection as listings, with the same end-to-end delivery from our Korean detection engine.

What we broadcast

Two Upbit-specific event types, both also emitted by Bithumb when its parser sees the equivalent Korean phrasing:

"caution_released"     // 거래 유의 종목 지정 해제 — caution lifted (often a technical bounce)
"spot_delisting"       // 거래지원 종료 — final removal from spot

caution_released is our event name for the moment Upbit lifts a caution designation already placed on a token (거래 유의 종목 지정 해제) — the token had previously been flagged for review (concerns around liquidity, regulatory status, persistent volatility, supply schedule, etc.) and is now returning to normal trading status. spot_delisting is the inverse outcome: final removal from the spot market (거래지원 종료).

See the message reference for the full schema and example payloads.

Trading implications

Both events have a clear historical price-reaction direction: spot_delisting is bearish (final removal from the spot market) and caution_released is bullish (caution status lifted, the overhang of forced selling clears). On Upbit specifically, the Kimchi premium dynamic amplifies both directions — a delisting often triggers a sharper drop than the same event on Binance because Korean retail flow concentrates here, and a release can produce a quick mean-reversion as that flow returns.

Disclaimer. CryptoListing.ws is a real-time data feed, not a financial advisor. The directions above are observations of historical behaviour — not guarantees, predictions, or recommendations. Markets are noisy, signals fail, and past behaviour does not determine future outcomes. You are solely responsible for any trading decisions you make on the basis of these events.

Detection & API

Both event types are delivered over the same WebSocket connection as listings, delistings, and airdrops. A typical caution_released message looks like:

{
  "type": "announcement",
  "title": "신세틱스(SNX) 거래 유의 종목 지정 해제 안내",
  "ticker": "SNX",
  "publisher": "upbit",
  "listingType": "caution_released",
  "detectedTimestampUs": 1746280800834000,
  "dispatchTimestampUs": 1746280800842117,
  "abnormalDetectionLatency": false
}

And a spot_delisting message:

{
  "type": "announcement",
  "title": "룸네트워크(LOOM) 거래지원 종료 안내 (5/7 15:00)",
  "ticker": "LOOM",
  "publisher": "upbit",
  "listingType": "spot_delisting",
  "detectedTimestampUs": 1746280800834000,
  "dispatchTimestampUs": 1746280800842117,
  "abnormalDetectionLatency": false
}

One detail worth knowing: a single Upbit announcement occasionally pairs a release with a delisting, and Upbit also publishes multi-ticker delistings using comma-separated lists inside parentheses (e.g. "이더리움클래식(ETC), 웨이브(WAVES), 머큐리(MER) 거래지원 종료"). Multi-ticker events keep the listings convention: one message with the tickers joined comma-separated in the ticker field. Composite titles that span both stages are split into separate WebSocket events with distinct listingType values, so your bot can route each side independently — no parsing logic on your end.

Filtering is a one-liner — exactly the same code path you use for Bithumb, just routed by publisher:

def on_message(ws, msg):
    data = json.loads(msg)
    lt = data["listingType"]
    cex = data["publisher"]

    if lt == "caution_released":
        clear_risk(cex, data["ticker"])
    elif lt == "spot_delisting":
        unwind(cex, data["ticker"])

Get started

Both event types are included in every plan, free tier included. Grab an API key on Telegram via @cryptolistingwebsocket, then check the pricing page and developer docs to get connected. Upbit events are dispatched from our Tokyo endpoint wss://cryptolisting.ws; filter with ?cex=upbit to scope your subscription, or ?cex=bithumb,upbit to capture both Korean exchanges on a single stream and route by the publisher field.

This article is for informational purposes only and is not financial advice. CryptoListing.ws is a technical data feed service — see Legal.

Related

• New: Bithumb Caution & Delisting Alerts — the same caution-release / delisting events on the second-largest Korean venue.
• Bithumb vs Upbit: Listing Strategy — comparing the two major Korean exchanges for listing alpha.
• Upbit Listing Alerts — full coverage page with Korean-market context and FAQs.