Mizuho Markets Cayman LP
SEC Form 13F institutional filer · CIK 0001803149
13F-HR · 51 reported holdings · 2026-03-31
SEC-registered institutional investment manager.
Reported long-US-equity value
$1.60B
Top-10 concentration
85.5%
Mizuho Markets Cayman LP — $1.6B AUM allocation strategy
Mizuho Markets Cayman LP files SEC Form 13F and reports $1.6B of long US equity value across 51 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 37.6%, followed by Health Care 24.4% and Communication Services 12.5%.
The top 10 holdings account for 85% of reported value — a conviction-weighted book concentrated in its best ideas. The sector and industry splits below are of the same reported value. Track quarter-over-quarter adds, trims, new positions and exits below — sourced from SEC 13F filings, public domain.
Mizuho Markets Cayman LP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$1.6B
total across 51 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
85% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$GEHC +1.95M sh · +$126M+$PYPL +585K sh · +$25.1M+$MCHP +15.1K sh · +$2.34M
Biggest trims (shares)
−$XOM −491K sh · −$15.7M−$HD −65.7K sh · −$22.8M−$COIN −61K sh · −$18.4M
Exited to nil (held last quarter, gone now)
$USB ($41.3M last qtr)$NVDA ($34M last qtr)$FE ($19.3M last qtr)$HIG ($16.6M last qtr)$APD ($10.8M last qtr)
Sector allocation (share of reported value)
each slice is a share of the reported long-US-equity value — smaller sectors and the rest of the book roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Industry allocation (share of reported value)
- Semiconductors16.3%—
- Health Care Equipment13.6%—
- Interactive Media & Services12.5%—
- Systems Software12.3%—
- Biotechnology10.8%—
- Integrated Oil & Gas9.4%—
- Technology Hardware, Storage & Peripherals7.2%—
- Transaction & Payment Processing Services2.0%—
- Other holdings16.0%—
the finer GICS cut of the same book — same denominator — smaller industries roll into “Other holdings”
Qtr shift = share-point change vs the prior quarter's filing — first period tracked for this filer; the column fills in with the next quarterly refresh.
Top S&P 500 holdings
9 of 9 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $GEHC | GE HealthCare Technologies Inc | 3.07M | $218M | +1.95M | 13.6% |
| $META | Meta Platforms Inc | 349K | $200M | -7.34K | 12.5% |
| $MSFT | Microsoft Corporation | 533K | $197M | -28.3K | 12.3% |
| $AMGN | Amgen Inc | 489K | $172M | -800 | 10.7% |
| $ADI | Analog Devices Inc | 472K | $150M | -388 | 9.4% |
| $XOM | ExxonMobil Holdings Corporation | 880K | $149M | -491K | 9.3% |
| $DELL | Dell Technologies Inc | 697K | $114M | -5.21K | 7.1% |
| $MCHP | Microchip Technology Incorporated | 1.55M | $100M | +15.1K | 6.2% |
| $PYPL | PayPal Holdings Inc | 689K | $31.2M | +585K | 1.9% |
…and 42 more holdings in the full 13F filing (top positions only shown).
SEC Form 13F data sets · public domain · 45-day filing lag · >$100M AUM managers · as reported
← All 13F filers·← QuantOrb.pro
How to read Δ QoQ — the five insight categories, and the caveats
The categories. Analysts, quants and retail traders look past total portfolio value to isolate actionable signals. Five categories matter.
Conviction & concentration shifts
New positions vs complete exits — a brand-new stock signals high conviction; a full liquidation suggests a broken thesis or tax-loss harvesting. Aggressive sizing — look at share count, not dollars: a 20% share increase during a drawdown is strong dip-buying. Concentration — a narrowing top-5/10 means conviction; spreading capital across more names means hedging.
Sector & macro allocation rotations
Aggregating Δ QoQ moves across sectors shows where smart money is leaning in or sneaking out — rotating out of growth into defensives or energy, for example. The fund's total long equity exposure quarter-over-quarter is a proxy for overall institutional risk appetite.
Crowding & smart-money consensus
When several managers initiate or expand the same stock in the same quarter, that is institutional consensus. Contrarian reads: top pickers buying hard into a beaten-down name the market is selling.
Derivative & option overlays
Reported call/put changes indicate whether managers are adding downside hedges or leveraging upside exposure. Note: a long increase may be half of a market-neutral pair trade.
Who reads this
| Retail "cloners" | High-conviction ideas to replicate ~45 days after quarter-end. |
| Corporate IR | Which funds bought or dumped the stock, before the next call. |
| Quant / algo traders | Cross-sectional factor inputs: flow, momentum, ownership. |
Four caveats before you trade on it
- 45-day lag — holdings are quarter-end; positions may already be closed.
- Long-only — 13Fs miss shorts, pair trades and cash.
- No non-US / fixed income — the picture is US equities plus options.
- Corporate actions — splits and spinoffs distort raw share deltas.
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