Q1 2026 13F filings are due by May 15, 2026. This filing season will be one of the most informative in years — because Q1 2026 was when tariff shocks hit and the AI trade started rotating.
Here's what to watch when the filings drop.
The Q1 2026 context
Q1 2026 (January-March) was defined by two major themes:
1. Tariff escalation
- New tariffs announced on Chinese imports, European goods, and selected sectors
- Supply chain stocks (AAPL, NKE, retailers) sold off on tariff exposure
- Domestic-focused companies (utilities, healthcare, services) outperformed
- The tariff shock created a clear rotation catalyst
2. AI trade rotation
- After 2+ years of "buy everything AI," the market started differentiating
- NVDA still strong but some AI beneficiaries (pure-play software, speculative names) gave back gains
- Rotation from AI momentum plays toward AI infrastructure and applications with proven revenue
- Market shifted from "who benefits from AI?" to "who actually earns money from AI?"
What to look for in Q1 2026 13F filings
Theme 1: Tariff positioning
Look for: Did institutional investors reduce exposure to tariff-sensitive names?
| What to check | Why it matters |
|---|---|
| Apple (AAPL) weight changes | ~90% of iPhones made in China — tariff exposure proxy |
| Nike (NKE) institutional holders | Supply chain heavily in Vietnam/China |
| Retailer positions (TGT, WMT, COST) | Import-dependent margins |
| Domestic industrials (CAT, DE) | Potential tariff beneficiaries or victims |
The key question: Did smart money rotate out of China-exposed names into domestic-focused plays during Q1? The 13F data will show this clearly.
Theme 2: AI rotation
Look for: Which AI names gained institutional holders and which lost them?
| Category | Examples | Q1 2026 question |
|---|---|---|
| AI infrastructure (still strong?) | NVDA, AVGO, AMD | Did concentration increase or did funds trim? |
| AI software (rotating?) | PLTR, AI, SNOW | Are growth funds exiting? |
| AI applications (emerging?) | CRM, NOW, MSFT | Are funds rotating into proven AI revenue? |
| AI losers | Speculative AI plays | Did institutional holders exit? |
Theme 3: Defensive rotation
Look for: Did institutions move to safety?
- Healthcare weight changes across multiple filers
- Utility exposure (traditional and data center-focused)
- Consumer staples accumulation
- Cash proxy positions (short-term treasury ETFs like BIL, SHV)
Theme 4: International diversification
Look for: Did U.S.-focused managers start adding international exposure?
- European stock positions (individual names or EFA/VEA)
- Emerging market exposure (EEM, individual ADRs)
- Japan exposure (DXJ, individual names)
- Any new geographic diversification in traditionally U.S.-only portfolios
Which filers to watch most closely
Macro-sensitive filers
- Bridgewater Associates: Ray Dalio's firm explicitly positions around macro regimes. Their Q1 changes will reflect tariff/rotation views.
- Soros Fund Management: Historically macro-driven, tariff impacts should be visible.
AI bellwether filers
- Tiger Global: Major AI investor — did they trim or hold through rotation?
- Coatue Management: Tech-focused — how did they navigate AI differentiation?
- ARK Invest: Cathie Wood's AI/innovation thesis — did conviction hold?
Value vs. growth signal
- Berkshire Hathaway: Buffett's defensive positioning will be watched for tariff/recession signals
- Dodge & Cox: Pure value — did they find bargains in the tariff selloff?
- Pershing Square: Ackman's concentrated bets — any new positions initiated during volatility?
The filing season timeline
| Date | What happens |
|---|---|
| April 1-15 | Early filers start appearing on EDGAR |
| April 15-30 | Mid-season — smaller and mid-size managers file |
| May 1-10 | Pre-deadline rush — many large filers |
| May 15 | Deadline — Berkshire, Bridgewater, Renaissance typically file near deadline |
| May 15-June 30 | Amendment period — confidential treatment reveals |
Best research window
May 5-25: Most filings are available, data is still relatively fresh (only 5-7 weeks old), and you can cross-reference across multiple filers.
How to prepare now
- Build your watchlist before filings drop — decide which 10-15 filers you'll track
- Note current positions — use Q4 2025 data as your baseline for comparison
- Define your hypotheses — what do you expect to see? (e.g., "I expect tariff-sensitive names to show net institutional selling")
- Set up alerts — monitor EDGAR for your watchlist filers starting April 1
- Reserve time May 10-20 for your analysis window
This filing season will reveal how the smartest money in the world responded to two of 2026's defining market events. The data drops in 6 weeks.
Originally published at 13F Insight
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