Renaissance Technologies Q4 2025: The Alphabet Dump, NVIDIA Slash, and What the $64.5M Portfolio Really Tells Us

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Renaissance Technologies Q4 2025: The Alphabet Dump, NVIDIA Slash, and What the $64.5M Portfolio Really Tells UsVic Chen

Quantitative analysis of Q4 2025 13F institutional portfolio data When investors hear...

Quantitative analysis of Q4 2025 13F institutional portfolio data

When investors hear "Renaissance Technologies," they think of one thing: the Medallion Fund, the greatest money-making machine in the history of finance. But the Q4 2025 13F filing tells a very different story—and understanding the gap between perception and reality is essential for anyone parsing this data.

The headline numbers: $64.5 million in reported 13F assets across 3,185 positions. A portfolio that small from a firm reportedly managing tens of billions? That's the first clue that what you're looking at is not the Medallion Fund.

The Medallion Mystery: What This Filing Is (and Isn't)

Renaissance Technologies operates multiple funds. The legendary Medallion Fund—which has reportedly generated average annual returns of 66% before fees since 1988—is an internal, employee-only fund. Its positions are not disclosed in 13F filings because the fund uses predominantly non-equity strategies (futures, options, swaps) or holds positions short enough to avoid the reporting snapshot.

What appears in the 13F is likely the Renaissance Institutional Equities Fund (RIEF) or another public-facing vehicle. The $64.5 million AUM confirms this: Medallion manages an estimated $10–15 billion internally. A $64.5M equity book is a rounding error for Jim Simons's legacy operation.

That said, the signals in this public portfolio are still worth studying—because even Renaissance's "secondary" funds employ quantitative methods that most investors can't replicate.

Top 10 Holdings: Small Bets, Broad Spread

[Chart: see original article]

The top 10 positions reveal a remarkably diversified book:

No position exceeds 2.5% of the portfolio. The largest holding—Palantir at $1.56 million—is smaller than most retail investors' retirement accounts. This is a portfolio built on statistical edges across thousands of positions, not concentrated bets.

The Big Story: Alphabet and NVIDIA Get Gutted

[Chart: see original article]

The quarter-over-quarter changes are where this filing gets dramatic. Renaissance made several moves that would raise eyebrows at any fund, let alone one run by quants:

Near-total Alphabet exit:

  • GOOG (Class C) — shares slashed from 1.72M to 102K (-94%)

  • GOOGL (Class A) — shares cut from 2.61M to 296K (-89%)

Combined, Renaissance dumped over 3.9 million Alphabet shares in a single quarter. Last quarter, Alphabet was among the fund's top holdings at a combined $1.05 million. Now it's a sub-$125K stub. For a quantitative operation, this isn't a trim—it's a signal reversal.

Massive NVIDIA reduction:

NVIDIA went from a $1.05M position (the fund's second-largest last quarter) to just $163K. At a time when most institutional investors are piling into the AI trade, Renaissance's models appear to be saying the momentum has peaked—or at least, the risk-reward no longer meets their thresholds.

The Counter-Move: Massive NFLX Build and Momentum Adds

While selling Alphabet and NVIDIA, Renaissance was aggressively building positions elsewhere:

  • Netflix (NFLX) — shares surged from 271K to 7.18M (+2,545%)

  • Chevron (CVX) — shares jumped from 419K to 2.19M (+424%)

  • Uber (UBER) — shares rose from 434K to 2.03M (+368%)

  • T-Mobile (TMUS) — shares grew from 247K to 1.08M (+339%)

  • MicroStrategy (MSTR) — shares increased from 226K to 957K (+324%)

The Netflix build is extraordinary—a 26x increase in share count. NFLX jumped from a negligible holding to the fund's sixth-largest position. Combined with the Alphabet exit, this reads as a rotation within the content/tech space: out of search advertising, into streaming dominance.

The Chevron add is notable for a different reason—it suggests Renaissance's models may be detecting value or mean-reversion signals in energy that aren't obvious from headline narratives.

Turnover: 140 In, 140 Out

Renaissance added 140 entirely new positions and exited 140 others in Q4—a turnover rate of roughly 4.4% of the portfolio by position count. That's significantly higher than AQR Capital's 69/69 churn rate this quarter, consistent with Renaissance's reputation for higher-frequency rebalancing even in its longer-duration public funds.

AUM Context: A Shrinking Public Footprint

The $64.5M AUM represents a 15% decline from Q3 2025's $75.8M and a 4.6% decline from a year ago ($67.6M in Q4 2024). Over the past 20 quarters, the public portfolio has ranged from a peak of $85.2M (Q1 2022) to a trough of $58.7M (Q3 2023).

This shrinking pattern is consistent with Renaissance gradually reducing its public equity exposure in favor of other instruments—or simply reflecting the fund's quantitative models finding fewer opportunities in the current market that meet their holding-period criteria for 13F reporting.

What Investors Should Take Away

Renaissance's 13F is both fascinating and misleading. Fascinating because the trades—the Alphabet dump, the NVIDIA slash, the Netflix surge—are dramatic and potentially signal-rich. Misleading because this $64.5M portfolio is a tiny fraction of what Renaissance actually manages, and the Medallion Fund's real positions are invisible.

Still, for retail investors tracking smart money flows, these moves are worth monitoring. When one of the most sophisticated quantitative operations in history cuts its NVIDIA position by 85% while the rest of Wall Street is long AI, it's at minimum a data point worth considering—even if the dollar amounts involved are small.

Explore Renaissance Technologies' full Q4 2025 portfolio on 13F Insight to see every position and historical trend.

For full position-level data: Renaissance Technologies Q4 2025: The Al...

Originally published at 13finsight.com