Financial Performance - Total revenue increased by 7% year-over-year to $265 billion[53] - Launch products generated $252 million in revenue, a 26% increase quarter-over-quarter and a 91% increase year-over-year[53] - Non-GAAP diluted EPS increased by 4% year-over-year to $547[53] - The company generated $134 million of free cash flow, which includes a $745 million impact from Q2 2025 tax payments[53] - The company expects full-year 2025 Non-GAAP diluted EPS between $1550 and $1600, up from the previous guidance of $1450 to $1550[53] - The company expects full-year 2025 total revenue to be approximately flat at constant currency versus FY 2024, an increase from a mid-single-digit decline previously[53] Product Performance - SKYCLARYS worldwide sales reached $130 million in Q2, up 30% year-over-year and 5% quarter-over-quarter[47] - SKYCLARYS U S sales were $78 million, up 3% year-over-year and 13% quarter-over-quarter[47] - ZURZUVAE U S sales were $46 million in Q2, up 213% year-over-year and 68% quarter-over-quarter[48] - LEQEMBI worldwide sales were $160 million in Q2, excluding $35 million in stocking in China; U S sales increased 20% quarter-over-quarter to $63 million[49] Pipeline and Development - Phase 3 studies were initiated for felzartamab in IgAN and PMN, and for SKYCLARYS in pediatric FA[18] - Positive Phase 1b results for salanersen support moving to registrational status for SMA, with a Phase 3 study expected to start by early 2026[18,32] - New analyses of dapirolizumab pegol Phase 3 data in SLE show improvement in fatigue and reduction in disease activity[18]

Core Viewpoint - Analysts forecast a significant decline in Biogen Inc.'s quarterly earnings and revenues, indicating potential challenges for the company in the upcoming earnings release [1][2]. Financial Performance Estimates - Expected earnings per share (EPS) for Biogen is $3.94, reflecting a year-over-year decline of 25.4% [1]. - Anticipated revenues are projected at $2.32 billion, which is a decrease of 5.8% compared to the same quarter last year [1]. Revisions and Trends - Over the past 30 days, the consensus EPS estimate has been revised downward by 2.7%, indicating a shift in analysts' expectations [2]. - Changes in earnings estimates are crucial for predicting investor reactions, as empirical studies show a strong correlation between earnings estimate revisions and short-term stock performance [3]. Product Revenue Estimates - Revenue from the product TYSABRI for Multiple Sclerosis is estimated at $372.66 million, down 19.4% year-over-year [5]. - Revenue from SPINRAZA for Rare Disease is projected at $396.92 million, indicating a decline of 7.5% year-over-year [5]. - SKYCLARYS for Rare Disease is expected to generate $128.37 million, showing a year-over-year increase of 28.4% [5]. Detailed Product Revenue Breakdown - Total net product revenue is estimated to be $1.72 billion, reflecting a year-over-year decrease of 9.5% [6]. - TYSABRI revenue in the United States is projected at $203.91 million, down 18% year-over-year [6]. - Revenue from TECFIDERA in the United States is expected to be $32.02 million, indicating a decline of 27.4% year-over-year [7]. Additional Revenue Insights - SPINRAZA revenue from the Rest of World is estimated at $244.01 million, down 10.2% from the previous year [8]. - Revenue from SPINRAZA in the United States is projected at $156.29 million, showing a slight decline of 0.6% year-over-year [8]. - Revenue from Interferon products in the United States is expected to be $129.57 million, reflecting a decrease of 10.9% year-over-year [9]. Stock Performance - Over the past month, Biogen's shares have decreased by 1.7%, contrasting with a 3.4% increase in the Zacks S&P 500 composite [10]. - Biogen currently holds a Zacks Rank 3 (Hold), suggesting its performance may align with the overall market in the near future [10].