ETF · Intermediate Core Bond

iShares Core U.S. Aggregate Bond ETF(AGG)

$98.71
+0.03%
Expense Ratio
$138.7B
Total AUM
Holdings
Inception
Active Share vs VOO
Truly Active
0%20%60%100%
100.7%

AI Look-Through Summary

AI Generated

The iShares Core U.S. Aggregate Bond ETF maintains a substantial asset base of approximately $138.7 billion, reflecting its role as a broad market proxy for the fixed-income sector. Analysis of the top ten holdings reveals that no single security exceeds 0.5% of the portfolio's total value, with the largest constituent holding at just 3.2%. This extreme concentration dilution across the leading positions indicates a highly diversified structure designed to mitigate idiosyncratic risk associated with individual issuers or specific bond maturities. The uniformity in weightings among the top ten names suggests that the fund's construction prioritizes breadth over exposure to any particular high-yield entity, effectively smoothing out volatility inherent in single-name performance.

Geographically and sectorially, while specific country allocations are not detailed in the provided data snapshot, the nature of these holdings—identified by standard CUSIP prefixes typical of U.S.-domiciled government and agency securities—implies a heavy tilt toward domestic obligations rather than international equities or foreign sovereign debt. The quantitative profile underscores a passive indexing strategy where capital is distributed across thousands of underlying instruments to mirror the performance of the aggregate U.S. bond market. By avoiding significant weightings in any single security, the fund aims to capture the overall yield curve movements and credit spread dynamics of the broader asset class rather than betting on specific issuers. This structural approach ensures that returns are driven primarily by macroeconomic factors such as interest rate shifts and inflation expectations rather than the operational success or failure of individual corporate borrowers or municipalities within the top tier of holdings.

Generated by Qwen-32B from constituent-level data. Not investment advice. Updated: 2026-05-22 06:22:15.539568+00

🔍 Theme Alignment Audit

AI GeneratedPurity: 95/100

The investment theme implied by the name "U.S. Aggregate Bond" suggests a broad-based exposure to the entire spectrum of U.S. fixed income securities, and the provided data reflects this mandate with high fidelity. Unlike thematic equity funds that often struggle to maintain focus amidst market shifts or dilute their strategy with unrelated mega-cap stocks for stability, this fund's composition appears strictly adherent to its stated objective without obvious deviations into non-bond assets. The absence of specific company names in the top holdings list, replaced instead by generic identifiers common in bond ETFs, indicates that individual issuer selection is secondary to overall index replication rather than a strategy driven by stock-picking or thematic alignment with unrelated sectors.

Concentration risk appears minimal given the extremely low top-ten concentration ratio of 7.0%, which demonstrates a highly diversified portfolio where no single security exerts significant influence on performance. The sector coherence, while not explicitly detailed in the provided snippet, is logically consistent with an aggregate bond index that typically balances government treasuries, agency securities, and investment-grade corporate debt to mirror the broader market structure. This fund differentiates itself from a broad equity index by focusing exclusively on fixed income instruments rather than company ownership, yet its lack of active stock selection or sector tilts means it functions more as a passive benchmark for the bond market than a differentiated thematic strategy. The data suggests a vehicle designed purely for capital preservation and yield generation through diversification rather than seeking alpha via specific industry exposure.

AI analysis of holdings alignment vs fund theme. Not investment advice. Updated: 2026-05-23 01:26:42.617952+00

Flow Driver Analysis

2-Step Circle

Which larger ETFs share AGG's holdings — and mechanically drive its price through index rebalancing flows?

Approximately 34% of AGG's weight flows through these larger ETFs

Driver ETFAUMExpenseShared StocksWeight Overlap
SHYiShares 1-3 Year Treasury Bond ETF$25B9018.0%
LQDiShares iBoxx $ Investment Grade Corporate Bond ETF$29B308815.7%

18% of AGG's portfolio by weight is also held by SHY. When SHY receives inflows, it mechanically buys these shared stocks — dragging AGG's NAV along regardless of any thematic or sector catalyst. Combined, the top 2 overlapping ETFs control exposure to 34% ofAGG's weight.

Overlap computed from constituent-level holdings data across 2 ETFs. Price co-movement with driver ETFs is structural, not coincidental. Not investment advice.

ETF Look-Through Dashboard

Replaces $249/yr Morningstar

Peer through the ETF wrapper to see exactly what you own. Every metric is computed from constituent-level data.

3.93%
Dividend Yield

Herfindahl-Hirschman Concentration Index

0100020003000400011
Well Diversified
Top 5: 2.2%Top 10: 4.2%

Morningstar-Style Box

Value
Blend
Growth
Large
Mid
Small
Small Value

Under the Hood — Top 15 Constituents

Top 10 Concentration7.0%
#TickerCompanyWeightP/EF-Score
1066922477
BLACKROCK CASH FUNDS
3.19%
291282CPL9
United States Treasury
0.46%
391282CPR6
United States Treasury
0.43%
491282CMM0
United States Treasury
0.42%
591282CKQ3
United States Treasury
0.42%
691282CPJ4
United States Treasury
0.42%
791282CJZ5
United States Treasury
0.41%
891282CLW9
United States Treasury
0.41%
991282CJJ1
United States Treasury
0.41%
1091282CGQ8
United States Treasury
0.40%
1191282CLF6
United States Treasury
0.40%
1291282CNC1
United States Treasury
0.39%
1391282CNT4
United States Treasury
0.39%
1491282CDJ7
United States Treasury
0.38%
1591282CGM7
United States Treasury
0.35%
The bottom 13168 stocks in AGG account for only 91.1% of the total fund weight.Only the top 50 holdings are shown. Total holdings: 13,183.

Historical Holdings Snapshots

Browse how AGG’s holdings have changed across SEC filing dates. Showing top holdings per snapshot.

2026-05-24

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

2026-05-23

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

2026-05-22

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

2026-05-21

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

2026-05-20

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

2026-05-19

15 holdings · 8.9% tracked weight
#TickerWeightSharesMarket Value
10669224773.19%4,507,603,571$4.5B
291282CPL90.46%$654.6M
391282CPR60.43%$603.6M
491282CMM00.42%$599.1M
591282CKQ30.42%$596.6M
691282CPJ40.42%$595.3M
791282CJZ50.41%$584.3M
891282CLW90.41%$584.2M
991282CJJ10.41%$572.8M
1091282CGQ80.40%$570.7M
1191282CLF60.40%$569.8M
1291282CNC10.39%$554.9M
1391282CNT40.39%$553.3M
1491282CDJ70.38%$535.7M
1591282CGM70.35%$494.7M

Source: SEC filings and fund provider disclosures. Shows last 6 snapshot dates, top 15 holdings per date by weight.

Risk Profile

4.3%
Annual Volatility
0.10
Sharpe (1Y)
-2.5%
Max Drawdown (5Y)

Sharpe = risk-adjusted return (higher is better). Computed from 1,200+ trading days with 5% risk-free rate.

Fama-French 5-Factor Exposure

Academic factor model decomposition — what's really driving this ETF's returns.

0.01
Market β
+0.027
Size (SMB)
Neutral
-0.046
Value (HML)
Neutral
+0.007
Profit (RMW)
Neutral
+0.106
Invest (CMA)
Conservative
Alpha (annual): +2.27%
R²: 4.0%of variance explained by 5 factors

⚠ Low R² — the equity factor model explains very little of this ETF's return variance. Factor exposures and alpha should be interpreted with caution.

Fama-French 5-Factor Model. Data: Kenneth French Data Library. Regression over 3 years of daily returns.

Price Chart with Moving Averages

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Technical Setup

AI Generated

The current trading price of $98.44 for the iShares Core U.S. Aggregate Bond ETF establishes a specific relationship with its long-term moving averages, though precise envelope boundaries are not explicitly defined in the available data points. Without knowing whether this level sits above or below the immediate 20-day and 50-day simple moving averages, it is difficult to definitively categorize the asset as being in an overbought or oversold state relative to its recent trajectory. In intermediate core bond markets, prices often oscillate within a defined range where deviations from central tendency typically invite mean-reversion forces; however, confirming whether $98.44 represents such an extreme deviation requires comparison against specific dynamic support and resistance levels derived from historical price action over the relevant timeframes. The positioning of this intermediate duration instrument suggests that market participants are monitoring valuation metrics relative to recent averages, yet the absence of explicit envelope data prevents a clear assessment of immediate mean-reversion probability. If the current level were significantly distant from the 20-day or 50-day moving average, it might indicate heightened potential for price correction toward equilibrium, whereas proximity to these lines could imply continued consolidation within an established channel. Ultimately, determining whether the asset is trading at a relative premium or discount necessitates calculating its exact distance from these key technical benchmarks, which remains undefined in the provided context but would be critical for assessing short-term volatility expectations and potential reversal patterns inherent to fixed-income equity proxies.

Underwater (Drawdown from Peak)

How far below the all-time high the price has been over time. Deeper = more pain for holders.

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Rolling 60-Day Beta vs S&P 500 (VOO)

How the ETF's sensitivity to market moves changes over time. β > 1 = more volatile than the market.

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Rolling Beta Market (β = 1.0)

Yield & Income

2.50%
TTM Yield
30-Day SEC Yield
5Y Div CAGR

Sector Drift Over Time

How AGG’s sector allocation has shifted across snapshots. Use the slider to travel through time.

2026-05-2457 snapshots
Other100.0%
2026-03-262026-05-24

Active Conviction Tracker

Shares bought and sold between the latest two data snapshots — reveals what the fund manager is actually doing.

No position changes detected between snapshots.

AUM & Capital Flow Tracker

Estimated assets under management derived from SEC filings and daily price movements — tracks how the fund's value evolves over time.

Total Net Assets
$146.30B
Est. AUM Change (90d)
$-1.14B
Price Change (90d)
-0.77%
Filing Snapshots
2
01-2302-1303-0903-3004-2105-1206-02$145.10B$147.66B$150.23B
Estimated AUMTNA Filing Date

Estimated AUM derived from the latest SEC N-PORT filing TNA ($146.30B) scaled by daily price changes. Filing snapshots update when new regulatory filings are published (quarterly for most funds, daily for ARK).

AGG Rate Shock Simulator

What happens to iShares Core U.S. Aggregate Bond ETF if the Fed changes rates? This simulator estimates price impact based on the fund's effective duration of 5.8 years, computed from 90-day regression of AGG's returns against treasury yield changes.

Effective Duration
5.8 yrs
Rate Sensitivity
MODERATE
Current Price
$98.71
If Fed Funds Rate Changes By
+1.00%
−2.00% (aggressive cut)0%+2.00% (aggressive hike)
Estimated Price Impact
-5.8%
Estimated New Price
$93.01
Rate ChangePrice ImpactEst. PriceVisual
-2.00%+11.5%$110.10
-1.50%+8.7%$107.25
-1.00%+5.8%$104.41
-0.50%+2.9%$101.56
-0.25%+1.4%$100.13
+0.00%(current)0.0%$98.71
+0.25%-1.4%$97.29
+0.50%-2.9%$95.86
+1.00%-5.8%$93.01
+1.50%-8.7%$90.17
+2.00%-11.5%$87.32

Price impact estimated using modified duration approximation: ΔPrice ≈ −Duration × ΔYield. Actual impact may differ due to convexity, credit spread changes, and market conditions. Duration computed from price-yield sensitivity analysis. Not investment advice.

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Quant metrics computed deterministically from financial statements and price data. Updated: 2026-06-02.

SecuritiesDB is for informational purposes only. Not investment advice.