Stocks to Watch

Biggest Stock Winners Today (U.S. & TSX)

Written by VentureVoyager

🚀 Top Stock Gainers Today – U.S. & Canada (June 20, 2025)

Looking for the best-performing stocks today on the NASDAQ, NYSE, and TSX? Whether you’re into momentum trading or sector analysis, here are today’s top 3 stock gainers in the U.S. stock market and Toronto Stock Exchange (TSX) — with key insights and company overviews.

🇺🇸 Top 3 Gainers on U.S. Stock Exchanges (NASDAQ)

1. Next Technology Holding Inc. (NXTT) – NASDAQ

  • Gain: +158.65%

  • Closing Price: $3.44

  • About the Company: NXTT is a tech holding company investing in early-stage innovations, particularly in AI infrastructure, cloud computing, and automation. It operates through subsidiaries focused on emerging enterprise technologies.

  • Today’s Move: Shares skyrocketed following rumors of a joint venture with a major cloud services provider.

2. Wheeler Real Estate Investment Trust (WHLR) – NASDAQ

  • Gain: +110.53%

  • Closing Price: $7.20

  • About the Company: WHLR is a real estate investment trust (REIT) focused on owning and managing retail shopping centers in secondary and tertiary markets across the U.S.

  • Today’s Move: The massive jump came after WHLR announced the sale of non-core assets and hinted at debt restructuring plans.

3. Citius Oncology Inc. (CTOR) – NASDAQ

  • Gain: +69.68%

  • Closing Price: $2.63

  • About the Company: CTOR is a clinical-stage biotechnology company specializing in oncology treatments, with a focus on novel immunotherapies and targeted cancer drugs.

  • Today’s Move: Shares surged after the company released positive clinical trial data for its lead oncology candidate.

🇨🇦 Top 3 Gainers on the TSX (Toronto Stock Exchange)

1. Quantum Biopharma Ltd. Class B (QNTM) – TSX

  • Gain: +9.40%

  • Closing Price: C$3.49

  • About the Company: Quantum Biopharma develops cannabinoid-based and synthetic compounds for pain and neurological disorders. It’s part of Canada’s emerging pharmaceutical innovation scene.

  • Today’s Move: QNTM rallied following strong earnings guidance and expansion plans in Latin America.

2. Augusta Gold Corp. (AUG) – TSX

  • Gain: +8.49%

  • Closing Price: C$1.15

  • About the Company: Augusta Gold is a Canadian gold exploration and development company with primary assets in Nevada, USA. It focuses on high-grade, near-surface mineral deposits.

  • Today’s Move: The stock surged in response to rising gold prices and renewed investor interest in junior gold miners.

3. Northern Superior Resources Inc. (SUP) – TSX

  • Gain: +7.87%

  • Closing Price: C$0.96

  • About the Company: SUP is a mineral exploration company exploring precious metals across Quebec and Ontario. It focuses on high-potential early-stage gold discoveries.

  • Today’s Move: SUP moved higher on speculation of a merger with another junior mining firm operating in the Abitibi Greenstone Belt.

Today’s market saw extraordinary gains in small-cap and biotech stocks in the U.S., and natural resource and pharma stocks in Canada. These gainers offer insights into shifting investor sentiment, especially in sectors like AI, biotech, real estate, and gold mining.

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