ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
SEC Form 13F institutional filer · CIK 0001164508
13F-HR · 354 reported holdings · 2026-03-31
Asset management firm, known for quantitative and systematic strategies.
Reported long-US-equity value
$127.83B
Top-10 concentration
37.7%
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP — $128B AUM allocation strategy
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP files SEC Form 13F and reports $128B of long US equity value across 354 reported holdings for 2026-03-31.
Its largest sector bet is Information Technology 32.2%, followed by Communication Services 8.2% and Consumer Discretionary 6.2%.
The top 10 holdings account for 38% of reported value — a broadly spread portfolio. 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.
ARROWSTREET CAPITAL, LIMITED PARTNERSHIP — latest SEC 13F insights
Reported long-US-equity value (13F AUM)
$128B
total across 354 reported holdings · 2026-03-31 · excludes shorts, cash, non-US
Top-10 concentration
38% of value
higher = narrower conviction; lower = spread / hedging
Biggest adds (shares)
+$AVGO +10.1M sh · +$2.83B+$MSFT +9.49M sh · +$1.84B+$GOOG +8.11M sh · +$2.11B
Biggest trims (shares)
−$NFLX −10.8M sh · −$1.01B−$FCX −8.73M sh · −$354M−$BMY −8.32M sh · −$389M
Exited to nil (held last quarter, gone now)
$PYPL ($179M last qtr)$COHR ($113M last qtr)$RCL ($104M last qtr)$DE ($100M last qtr)$GILD ($88.5M 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)
- Semiconductors8.9%—
- Interactive Media & Services7.1%—
- Systems Software7.0%—
- Application Software5.7%—
- Broadline Retail5.3%—
- Technology Hardware, Storage & Peripherals5.3%—
- Semiconductor Materials & Equipment3.1%—
- Transaction & Payment Processing Services1.4%—
- Other holdings56.1%—
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 |
|---|---|---|---|---|---|
| $MSFT | Microsoft Corporation | 24.3M | $8.98B | +9.49M | 7.0% |
| $AMZN | Amazon.com Inc | 32.6M | $6.79B | +7.92M | 5.3% |
| $AVGO | Broadcom Inc | 18.7M | $5.8B | +10.1M | 4.5% |
| $NVDA | NVIDIA Corporation | 31.8M | $5.54B | +5.13M | 4.3% |
| $AAPL | Apple Inc | 19.4M | $4.93B | +2.08M | 3.9% |
| $GOOG | Alphabet Inc. Class C Capital Stock | 17M | $4.9B | +8.11M | 3.8% |
| $GOOGL | Alphabet Inc | 14.6M | $4.18B | +6.3M | 3.3% |
| $LRCX | Lam Research Corporation | 13.2M | $2.82B | -170K | 2.2% |
| $CRM | Salesforce Inc | 12.7M | $2.36B | +7.16M | 1.8% |
| $MA | Mastercard Incorporated | 3.67M | $1.83B | +554K | 1.4% |
…and 344 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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