ZACKS·2025-12-29 16:21Market Performance - Major U.S. indexes ended the Christmas-shortened week higher, with the S&P 500 and Dow reaching new record highs, gaining 0.75% and 0.72% respectively, while the Nasdaq Composite increased by 0.70% [1] - The U.S. GDP growth rate for Q3 2025 was 4.3%, exceeding expectations and marking the fastest growth since Q3 2023 [2] - Despite a decline in consumer confidence, investor optimism is driven by strong corporate earnings outlook and AI enthusiasm [2] Stock Performance - Castle Biosciences, Inc. (CSTL) shares increased by 77.9% since being upgraded to a Zacks Rank 1 (Strong Buy) on October 20, significantly outperforming the S&P 500's 3.8% increase [3][6] - F.N.B. Corporation (FNB) shares rose by 13.4% after its upgrade to Zacks Rank 2 (Buy) on October 21, compared to the S&P 500's 2.8% increase [4] - Hamilton Insurance Group, Ltd. (HG) and Kinross Gold Corporation (KGC) saw gains of 19.8% and 7.7% respectively since their upgrade to Outperform on October 17 [7] Portfolio Performance - A hypothetical portfolio of Zacks Rank 1 stocks returned +14.3% in 2025, slightly underperforming the S&P 500's +14.9% [11] - The Zacks Model Portfolio has outperformed the S&P 500 index by over 12 percentage points since 1988, with an annualized average return of +23.9% compared to +11.5% for the S&P 500 [13] - The Zacks Earnings Certain Admiral Portfolio (ECAP) returned -1.30% in Q3 2025, underperforming the S&P 500's +8.1% gain [15] Dividend Portfolio Performance - Johnson & Johnson (JNJ) returned 14.3% over the past 12 weeks, while 3M Company (MMM) increased by 5.2% during the same period [18] - The Zacks Earnings Certain Dividend Portfolio (ECDP) returned -0.01% in Q3 2025, compared to the S&P 500's +8.1% gain [19]