US mid 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: CLF Cleveland-Cliffs Inc. (+16.1 %). Biggest move down: STWD STARWOOD PROPERTY TRUST, INC. S (−3.9 %). Highest relative volume: CLF Cleveland-Cliffs Inc. (5.3x). 1 of the ranked stocks report earnings today.
Closing pricesUSA · Mid Cap · 2026-10-19
Ranking by activity score
| # | Stock | Price | Change | Rel. volume | Score |
|---|---|---|---|---|---|
| 1 | CLFCleveland-Cliffs Inc. Vol 5.3x · gap +16.9% · move 5.0σ · range 11.6% (2.2x normal) · earnings today | 14.10USD | +16.10 % | 5.3x | 82.9 |
| 2 | AGIOAgios Pharmaceuticals, Inc. Vol 2.2x · move 5.4σ · range 10.8% (2.9x normal) | 34.90USD | +11.36 % | 2.2x | 57.6 |
| 3 | SLGNSilgan Holdings Inc. Vol 1.9x · gap +2.6% · move 3.4σ · range 6.5% (2.4x normal) | 40.06USD | +5.98 % | 1.9x | 40.2 |
| 4 | STWDSTARWOOD PROPERTY TRUST, INC. S Vol 1.7x · move 2.5σ · range 6.4% (2.7x normal) | 11.98USD | −3.85 % | 1.7x | 33.6 |
| 5 | ALKAlaska Air Group, Inc. Vol 2.1x · gap +1.4% · range 6.0% (1.6x normal) · earnings tomorrow | 33.98USD | −3.26 % | 2.1x | 29.8 |
| 6 | PHVSPharvaris N.V. gap +2.0% · move 3.0σ · range 7.6% (1.9x normal) | 29.77USD | +7.40 % | 1.3x | 26.0 |
| 7 | IBOCInternational Bancshares Corpor move 2.6σ · range 3.0% (2.0x normal) | 66.04USD | −1.93 % | 1.1x | 21.6 |
| 8 | PORPortland General Electric Co Vol 3.0x | 43.48USD | −1.53 % | 3.0x | 20.3 |
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).