Biggest ASX share price moves in May 2025, and why

In May 2025, 73 ASX share moves had a cause we could name. The biggest rise was Dateline Res. (DTR) at +200.0%, on operational news. The biggest fall was Cauldron (CXU) at −22.2%, on unknown news. Moves are the explained ones the site flagged that month, by the size of the day's move as it ended; the kind of news is the platform's reading of the news that day. General information only, not financial product advice.

Biggest rises (46 in the month)

  • DTRDateline Res.Operational · 2 May+200.0%
  • FMLFocus MineralsTakeover / M&A · 26 May+82.6%
  • DTRDateline Res.Regulatory · 6 May+68.2%
  • DXBDimerixContract · 1 May+41.7%
  • CXOCore LithiumOperational · 14 May+35.6%
  • CXUCauldronOperational · 23 May+28.6%
  • WTMWaratah Min.Sector Flow · 6 May+27.7%
  • SKSSKS TechContract · 22 May+21.2%
  • FRSForrestaniaOperational · 9 May+20.5%
  • APXAppenEarnings Beat · 16 May+18.7%

Biggest falls (27 in the month)

  • CXUCauldronUnknown · 27 May−22.2%
  • FMLFocus MineralsTakeover / M&A · 27 May−15.5%
  • GMDGenesis MineralsCommodity · 13 May−10.7%
  • PLSPLS GroupCommodity · 19 May−9.9%
  • CMMCapricorn MetalsSector Flow · 13 May−9.8%
  • PNVPolynovoOperational · 14 May−9.6%
  • ALLAristocratEarnings Miss · 14 May−8.9%
  • KGNKogan.comEarnings Miss · 20 May−8.8%
  • MINMineral ResourcesManagement · 19 May−8.8%
  • NWHNRWOperational · 15 May−8.3%

Top 10 each way. Percentages are the move on the day it was flagged.

What kind of news

  • Operational21 moves
  • Sector Flow10 moves
  • Contract7 moves
  • Unknown7 moves
  • Takeover / M&A6 moves
  • Commodity4 moves
  • Earnings Beat4 moves
  • Earnings Miss3 moves

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