Rhumbline Advisers Q4 2025: $123B Giant Orchestrates Massive Netflix and ServiceNow Expansion
Rhumbline Advisers reported a dramatic AUM surge to $123 billion in its Q4 2025 filing, highlighted by an 872% jump in its Netflix position.
Rhumbline Advisers Q4 2025: $123B Giant Orchestrates Massive Netflix and ServiceNow Expansion
Rhumbline Advisers has revealed a spectacular transformation in its Q4 2025 13F filing. The Boston-based asset manager reported a massive surge in canonical AUM, climbing to $123.69 billion. Headlining this growth was an aggressive rotation into high-growth software and media, marked by an 872% increase in Netflix (NFLX) holdings and a 386% boost to its ServiceNow (NOW) position.
Rhumbline Advisers Top Holdings — 2025Q4 ($M)
The Institutional Netflix Wave: 872% Position Jump
Rhumbline's accumulation of Netflix mirrors a broader institutional trend seen among mega-filers this quarter. The firm increased its share count from 770,000 to over 7.53 million shares, a position now valued at $705 million. This move suggests a high-conviction bet on the streaming leader's dominant content library and its expanding advertising ecosystem.
Complementing the Netflix trade, Rhumbline also orchestrated a 386% expansion of its ServiceNow (NOW) stake, adding nearly $280 million in value. These tactical shifts indicate a rotation from diversified indexing toward concentrated bets on enterprise efficiency and digital media scale.
Core Anchors: NVDA and AAPL Maintain Dominance
Despite the aggressive rotation, Rhumbline remains anchored by its core holdings in NVIDIA (NVDA) and Apple (AAPL). NVIDIA remains the portfolio's top individual bet at $7.91 billion (7.3% of the reported holdings value), while Apple follows closely at $7.21 billion.
| Ticker | Company | Value ($B) | Change |
|---|---|---|---|
| NVDA | NVIDIA CORPORATION | $7.91 | Held Flat |
| AAPL | APPLE INC | $7.21 | Held Flat |
| NFLX | NETFLIX INC | $0.71 | +872% |
| NOW | SERVICENOW INC | $0.28 | +386% |
Key Facts: Rhumbline Advisers Q4 2025 Filing
- Canonical AUM: $123.69B
- WhaleScore: 70.50
- Top-1 Concentration: 7.3% (NVDA)
- AUM Growth (QoQ): Surge from $0.12B (likely reporting consolidation)
For a detailed breakdown of all 4,187 positions, visit the full Rhumbline Advisers Portfolio Profile.
What to Watch Next
- Reporting Consolidation Impact: Watch for Q1 2026 filings to see if Rhumbline maintains this new $120B+ scale or if further consolidation is underway.
- Netflix Ad-Tier Performance: Will Rhumbline's massive bet pay off as Netflix rolls out its global ad-tier expansions?
- AI Integration conviction: Monitor the firm's NVDA and AVGO positions for any signs of profit-taking in early 2026.
Related Research
Explore all researchFIL Ltd revealed an unprecedented 2398% surge in Netflix holdings and a massive 1606% boost to its Oracle stake in its Q4 2025 filing, signaling a high-conviction growth pivot.
Apr 6, 2026
Nordea Investment Management revealed a significant 47% increase in Broadcom and an 887% surge in its Netflix position in its Q4 2025 filing, anchoring its $116B portfolio in AI and media.
Apr 6, 2026
Corient Private Wealth's portfolio expanded by over 133% in Q4 2025, driven by a hyper-aggressive pivot into Tesla (+3325% shares) and Netflix (+3776% shares).
Apr 5, 2026
TD Asset Management's latest 13F features a robust $124 billion portfolio blending Canadian bank stability with an aggressive rotation into US tech, led by a 730% surge in Netflix shares.
Apr 5, 2026
Wolverine Trading's latest 13F reveals a highly concentrated $138.7 billion portfolio led by a massive $15.8 billion stake in the SPY ETF and significant bets on NVDA and TSLA.
Apr 5, 2026