Rakuten Securities, Inc.
SEC Form 13F institutional filer · CIK 0002009539
13F-HR · 419 reported holdings · 2026-03-31
Reported long-US-equity value
$0.17B
Top-10 concentration
59.8%
Rakuten Securities, Inc. — $171M AUM allocation strategy
Rakuten Securities, Inc. files SEC Form 13F and reports $171M of long US equity value across 419 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 46.4%, followed by Communication Services 10.2% and Consumer Discretionary 8.1%.
The top 10 holdings account for 60% 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.
Rakuten Securities, Inc. — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$171M
total across 419 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
60% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$PSKY +39K sh · +$350K+$UNH +24K sh · +$5.93M+$OXY +10.9K sh · +$886K
Biggest trims (shares)
−$NVDA −60K sh · −$12.8M−$GOOG −38.9K sh · −$12.5M−$NEM −36.7K sh · −$3.46M
Exited to nil (held last quarter, gone now)
$BDX ($80.2K last qtr)$CBRE ($48.2K last qtr)$HSIC ($37.8K last qtr)$CLX ($9.07K last qtr)$EXPD ($7.15K 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)
- Semiconductors25.6%—
- Application Software8.9%—
- Automobile Manufacturers6.6%—
- Interactive Media & Services6.6%—
- Technology Hardware, Storage & Peripherals6.0%—
- Managed Health Care5.3%—
- Systems Software4.0%—
- Movies & Entertainment2.5%—
- Other holdings34.5%—
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
10 of 10 rows · sorted by Value ↓
| Ticker | Holding | Shares | Value | Δ QoQ | Weight |
|---|---|---|---|---|---|
| $NVDA | NVIDIA Corporation | 130K | $22.6M | -60K | 13.2% |
| $MU | Micron Technology Inc | 48.1K | $16.3M | +1.82K | 9.5% |
| $PLTR | Palantir Technologies Inc | 85.9K | $12.6M | -18K | 7.3% |
| $TSLA | Tesla Inc | 30.6K | $11.4M | -8.48K | 6.7% |
| $SNDK | Sandisk Corporation | 16.2K | $10.3M | +6.45K | 6.0% |
| $UNH | UnitedHealth Group Incorporated | 33.6K | $9.1M | +24K | 5.3% |
| $MSFT | Microsoft Corporation | 18.3K | $6.76M | +4.04K | 3.9% |
| $AVGO | Broadcom Inc | 16K | $4.94M | -6.06K | 2.9% |
| $NFLX | Netflix Inc | 44.7K | $4.29M | +821 | 2.5% |
| $GOOGL | Alphabet Inc | 14.6K | $4.18M | -20.8K | 2.4% |
…and 409 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.
Newsletter signup
Free subscription. Daily trading day morning dispatch. No spam.