China A-Share Unlock Calendar — Lockup Expiry Tracker

Track upcoming share unlocks (限售解禁) across the entire Chinese A-share market in one run. When a company's previously locked-up shares become freely tradable, it's a major supply event that can move the stock — and this Actor gives you the full calendar as clean, structured rows: the unlock date, how many shares and how much market cap unlock, the share type, what fraction of the company it represents, and the stock's price move 20 days before and after.

If you trade, research, or monitor Chinese equities, lockup expiries are one of the most-watched event catalysts — and there's almost no clean, structured way to pull them. No login, no account, no API key.

Why lockup expiries matter

Pre-IPO investors, private-placement participants and insiders hold shares under lockup. When that lockup expires, a large block of stock can suddenly hit the market — often pressuring the price. Funds track the calendar to avoid (or trade) the supply overhang. This Actor turns Eastmoney's unlock data into a filterable feed you can drop into a spreadsheet, dashboard or model.

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
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	Stock's return in the 20 trading days before the unlock
priceChangePct20dAfter	Return in the 20 days after (0/empty for future unlocks)

Input

• From date (startDate) — earliest unlock date (YYYY-MM-DD). Blank = today, i.e. 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": "2026-09-30",
  "minUnlockMarketCapCny": 1000000000
}

Example output row

{
  "unlockDate": "2026-06-24",
  "stockCode": "603236",
  "stockName": "移远通信",
  "market": "SSE",
  "sharesUnlocked": 36632071,
  "unlockMarketCapCny": 1790941951,
  "shareTypeEn": "Private placement (institutional)",
  "pctOfTotalShares": 9.09,
  "currentPrice": 48.89,
  "priceChangePct20dBefore": -10.42
}

Use cases

• Event calendar — pull the next N months of unlocks and flag the big ones (minUnlockMarketCapCny).
• Supply-overhang screening — sort by pctOfTotalShares to find the most dilutive expiries.
• Single-name monitoring — set securityCodes to watch lockups on stocks you hold.
• Post-event studies — pull past unlocks and use priceChangePct20dBefore/After to study price impact.
• Risk dashboards — feed upcoming unlocks into your own app or BI tool.

Tips

• Run it on a schedule (e.g. weekly) with a forward endDate to keep a rolling unlock calendar.
• Use minUnlockMarketCapCny to cut to the events large enough to actually move a stock.
• priceChangePct20dBefore often weakens ahead of a large unlock — a useful pre-positioning signal.

FAQ

Account or API key needed? No — data is pulled live from Eastmoney's public dataset.

Which markets? All A-shares: Shanghai & Shenzhen main boards, STAR Market, ChiNext and the Beijing Stock Exchange. NEEQ optional.

How current? As fresh as Eastmoney; upcoming unlocks are known well in advance.

Currency / units? CNY; share counts are absolute (already converted from Eastmoney's 万 units).

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Part of a China market-intelligence suite:

• China A-Share Earnings Calendar — upcoming results announcement dates.
• China A-Share Financials — per-company revenue, profit, EPS, ROE.
• China A-Share Insider Trades, Block Trades, Dragon-Tiger List, Stock Connect Flow — the rest of the China event/flow stack.