Pre-market movers - May 20, 2026

Here is how US equities are shaping up pre-market on May 20, 2026. The names below show the widest percentage moves against yesterday's close, giving a quick read on where retail and institutional attention is concentrating before the opening bell.

InMed Pharmaceuticals Inc. (INM) leads pre-market gainers, climbing +135.05% to $1.60. AMPGZ at +132.00% and AMST at +120.07% round out the early movers. The remaining 7 names in the top 10 are up an average of 94.54% heading into the open.

Jayud Global Logistics Limited (JYD) leads pre-market losers, falling +65.94% to $1.88. ONCO at -61.56% and YMAT at -51.06% round out the early movers. The remaining 7 names in the top 10 are down an average of 39.04% heading into the open.

Pre-market action does not always carry into the regular session - gaps often fade once liquidity returns - but outsized moves here frequently trace back to overnight filings, earnings, analyst actions, or macro headlines worth checking on each ticker's wire.