Stock Market Movers: Best and Worst Performers of 15 October 2026

Highest Gainers

10. Z: Zilow Group (Z) jumps 11.05% alongside its peers as Treasury yields fall sharply, making other investment assets, such as real estate, more attractive.

9. QNT: Quantinuum (QNT) climbs 11.05%, thanks to Morgan Stanley’s overweight rating and price target with 69% upside potential.

8. RXRX: Recursion Pharmaceuticals (RXRX) surges 11.23% as Sanofi kicks off a joint collab for the development of drug molecules.

7. ERIC: Telefonaktiebolaget LM Ericsson (ERIC) on better-than-expected Q3 earnings. Net sales up 6%, thanks to higher network sales.

6. KD: Kyndryl Holdings (KD) climbs 11.87% after clinching deal with Toyota Group to transform IT service operations with agentic AI.

5. KRMN: Karman Holdings (KRMN) ends 3-day losing streak, up 12.48% on bargain-hunting after touching a 52-week low intraday.

4. REAL: The RealReal Inc. (REAL) jumps 15.82% on early redemption of 2029 notes, while investors also position portfolios ahead of Q3 earnings.

3. OPEN: Opendoor Technologies (OPEN) surges 16.58% as property stocks jump on fall of Treasury yields.

2. OPK: OPKO Health (OPK) rockets 17.52% higher on $872M sale of select assets to Labcorp.

1. VSTM: Verastem Inc. (VSTM) soars 19.71% as Mizuho, RBC Capital reiterate outperform rating over strong clinical trial of treatment candidate for cancer.

Worst Performers

10. DHT: DHT Holdings (DHT) sheds 6.09% on profit-taking following the previous days’ surge over higher tanker rates.

9. FRVO: Fervo Energy (FRVO) extends losing streak to 7th day, slashes 6.22% on investor pessimism and a new class action lawsuit triggered by a short-seller report that it allegedly failed to disclose existential issues.

8. RKLB: Rocket Lab (RKLB) falls 6.64% as firm delays launch of Neutron rocket to 2027.

7. DELL: Dell Technologies Inc. (DELL) extends losing streak to 4th day, shedding 6.8% on lingering AI pessimism.

6. AESI: Atlas Energy Solutions (AESI) falls on 4th straight day, dropping 6.87% on lingering investor pessimism.

5. HPE: Hewlett Packard Enterprise (HPE) declines 7.10% over concerns about AI borrowings.

4. TH: Target Hospitality (TH) drops 7.18% on lack of catalysts.

3. LBRT: Liberty Energy (LBRT) falls 7.27% as investors position portfolios ahead of Q3 earnings next week.

2. PENG: Penguin Solutions (PENG) declines 8.48% on profit-taking after previous days’ surge to near the $80 level.

1. SMTC: Semtech Corp. (SMTC) loses 10.01% as investors sour on growth forecast.