US large 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: AMZN Amazon.com, Inc. (+5.0 %). Biggest move down: RBA RB Global, Inc. (−5.3 %). Highest relative volume: EHC Encompass Health Corporation (2.7x). 1 of the ranked stocks report earnings today.
Closing pricesUSA · Large Cap · 2026-10-19
Ranking by activity score
| # | Stock | Price | Change | Rel. volume | Score |
|---|---|---|---|---|---|
| 1 | EHCEncompass Health Corporation Vol 2.7x · move 4.6σ · range 5.4% (2.3x normal) | 121.71USD | −4.83 % | 2.7x | 53.5 |
| 2 | RBARB Global, Inc. Vol 2.7x · move 3.3σ · range 7.5% (2.8x normal) | 79.81USD | −5.35 % | 2.7x | 47.5 |
| 3 | WRBW.R. Berkley Corporation Vol 1.7x · gap −1.0% · earnings today | 74.08USD | −1.75 % | 1.7x | 32.7 |
| 4 | ESEversource Energy (D/B/A) Vol 1.6x · move 3.1σ · range 3.8% (2.2x normal) | 64.48USD | −3.52 % | 1.6x | 32.6 |
| 5 | GPCGenuine Parts Company Vol 1.8x · earnings tomorrow | 130.18USD | −2.83 % | 1.8x | 31.5 |
| 6 | AMZNAmazon.com, Inc. Vol 1.6x · gap +2.2% · move 3.2σ · range 3.3% (1.6x normal) | 262.45USD | +5.01 % | 1.6x | 29.1 |
| 7 | HALHalliburton Company Vol 2.4x · earnings tomorrow | 32.98USD | −1.58 % | 2.4x | 26.9 |
| 8 | HASHasbro, Inc. Vol 2.4x · earnings tomorrow | 98.49USD | −0.26 % | 2.4x | 26.2 |
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).