US small cap most active stocks today, 19 Oct 2026
Ranked by activity score: relative volume, price move and scheduled events.
Closing data for the session on 19 Oct 2026.
Stocks are ranked by an activity score; 4 on the list trade at 2x or more their usual volume for this time of day.
Biggest move up: SLN Silence Therapeutics Plc - Amer (+125.8 %). Biggest move down: NWCL newcleo plc (−19.2 %). Highest relative volume: SLN Silence Therapeutics Plc - Amer (75.0x).
Closing pricesUSA · Small Cap · 2026-10-19
Ranking by activity score
| # | Stock | Price | Change | Rel. volume | Score |
|---|---|---|---|---|---|
| 1 | SLNSilence Therapeutics Plc - Amer Vol 75.0x · gap +125.8% · move 37.0σ | 19.58USD | +125.84 % | 75.0x | 65.0 |
| 2 | ANNXAnnexon, Inc. Vol 2.0x · gap +6.7% · move 4.7σ · range 16.3% (2.8x normal) | 4.01USD | +17.25 % | 2.0x | 53.3 |
| 3 | GOODGladstone Commercial Corporatio Vol 1.6x · move 5.5σ · range 5.7% (3.2x normal) | 11.87USD | −4.85 % | 1.6x | 53.0 |
| 4 | ARRARMOUR Residential REIT, Inc. Vol 1.8x · move 5.3σ · range 6.7% (2.4x normal) | 12.28USD | −7.08 % | 1.8x | 50.5 |
| 5 | NWCLnewcleo plc Vol 3.4x · move 3.7σ · range 21.6% (2.3x normal) | 4.75USD | −19.22 % | 3.4x | 50.5 |
| 6 | ORRFOrrstown Financial Services, In gap −5.6% · move 4.4σ · range 6.3% (3.1x normal) · earnings tomorrow | 41.31USD | −0.98 % | 0.8x | 47.2 |
| 7 | WERNWerner Enterprises, Inc. Vol 2.3x · gap −3.8% · move 3.7σ · range 8.4% (2.7x normal) | 30.22USD | −7.89 % | 2.3x | 46.5 |
| 8 | HPPHudson Pacific Properties, Inc. Vol 2.5x · gap −4.4% · move 3.8σ · range 10.2% (2.1x normal) | 9.02USD | −12.43 % | 2.5x | 44.6 |
Size groups by market cap: Large ≥ $10bn, Mid ≥ $2bn, Small ≥ $300m, Micro below (down to ~$40m).
How the score works
Everything is measured against each stock’s own norm, so large caps are not favoured for liquidity: volume so far vs its 20-day average at the same time of day (35 pts) · price move and gap in standard deviations plus day range vs normal (45 pts) · earnings and fresh news (20 pts).