China A-Share Unlock Calendar — Lockup Expiry Tracker

Restricted-share unlocks (限售解禁) are the single most-watched supply event in A-shares — when locked-up IPO, placement or incentive shares become freely tradable, the overhang can pressure the price for weeks. This actor returns the full upcoming (or historical) unlock calendar from Eastmoney: unlock date, number of shares and market-cap unlocking, the share type (with an English translation), the unlock as a % of pre-unlock free float and of total shares, holders unlocking, and the stock's price move 20 trading days before and after. Filter by date window, specific stock codes, or minimum unlock size. A-shares only by default; no login.

What you get

One row per unlock event:

Field	Description
unlockDate	Date the shares become tradable
stockCode / secuCode	6-digit code and full code with exchange suffix
stockName	Company short name
market	SSE / SZSE / BSE (board noted)
sharesUnlocked	Number of shares unlocking (absolute)
unlockMarketCapCny	Market cap of the unlocking shares, in CNY
shareType / shareTypeEn	Lockup type (IPO lockup, private placement, equity incentive, …) — Chinese and English
pctOfPreUnlockFloat	Unlock as % of pre-unlock free float
pctOfTotalShares	Unlock as % of total shares outstanding
holdersUnlocking	Number of holders in this unlock batch
currentPrice	Latest stock price (CNY)
priceChangePct20dBefore	Return in the 20 trading days before the unlock
priceChangePct20dAfter	Return in the 20 days after (null for future unlocks)

Input

• From date (startDate) — earliest unlock date (YYYY-MM-DD). Blank = today (upcoming unlocks).
• To date (endDate) — latest unlock date. Blank = open-ended.
• Stock codes (securityCodes) — restrict to specific tickers, or leave empty for the whole market.
• Min unlock market cap (minUnlockMarketCapCny) — only big events (e.g. 1000000000 for ¥1B+).
• Include NEEQ (includeNEEQ) — off by default; A-shares only.
• Max events (maxResults).

Example input

{ "startDate": "2026-06-24", "endDate": "2026-12-31", "minUnlockMarketCapCny": 1000000000, "maxResults": 500 }

Example output row

{
  "unlockDate": "2026-07-15",
  "stockCode": "300750",
  "stockName": "宁德时代",
  "secuCode": "300750.SZ",
  "market": "SZSE (ChiNext)",
  "sharesUnlocked": 12000000,
  "unlockMarketCapCny": 2640000000.0,
  "shareType": "定向增发机构配售股份",
  "shareTypeEn": "Private placement (institutional)",
  "pctOfPreUnlockFloat": 0.61,
  "pctOfTotalShares": 0.27,
  "holdersUnlocking": 8,
  "currentPrice": 220.0,
  "priceChangePct20dBefore": -3.2,
  "priceChangePct20dAfter": null,
  "dataSource": "Eastmoney 限售解禁 (live)"
}

Use cases

• Supply-overhang screening — surface large unlock events next quarter with minUnlockMarketCapCny.
• Watchlist monitoring — set securityCodes to track lockups on stocks you hold.
• Quant study — analyse price moves by shareTypeEn (IPO lockup vs private placement).
• Monthly digest — pull the biggest unlocks this month for a rolling calendar.
• Risk dashboards — feed upcoming unlocks into your own app or BI tool.

FAQ

What is 限售解禁? Previously restricted shares becoming freely tradable — a supply event that can pressure the price. Are IPO lockups and private placements both covered? Yes — distinguished via shareType / shareTypeEn. Is NEEQ (新三板) included? No by default (A-shares only); set includeNEEQ to true to include it. How can I see the price reaction? Use priceChangePct20dBefore and priceChangePct20dAfter. Can I limit to large unlocks only? Yes — set minUnlockMarketCapCny. Account or API key needed? No — data is pulled live from Eastmoney's public dataset.

Related actors

More China A-share market data (Eastmoney-powered):

• A-Share Earnings Calendar
• China A-Share IPO Subscription Calendar
• China Block Trades Tracker (大宗交易)
• China Dragon-Tiger List (龙虎榜)