iShares iBoxx $ High Yield Corporate Bond ETF
Portfolio Exposure & Concentration
Look-through constituent allocation & index mechanics (S47B)
Securities in fund basket
Combined weight of largest 10
TransDigm Inc 6.75% 2028
Active industry exposures
Top 25 Holdings — HYG (S47B-01)
Statutory Form N-PORT authenticated portfolio weights with direct equity research bridge (S47B-04)
| # | Company / Security | Portfolio Weight | Equity Research |
|---|---|---|---|
| 1 | TDG-6.75-28TransDigm Inc 6.75% 2028 | 0.80% | Stock Dossier |
| 2 | THC-4.87-26Tenet Healthcare Corp 4.875% 2026 | 0.70% | Stock Dossier |
| 3 | CHTR-5.12-27Charter Communications 5.125% 2027 | 0.60% | Stock Dossier |
| 4 | DISH-5.87-24DISH DBS Corp 5.875% 2024 | 0.50% | Stock Dossier |
| 5 | TEVA-4.75-27Teva Pharmaceutical Finance 4.75% 2027 | 0.50% | Stock Dossier |
| 6 | AAL-5.75-29American Airlines Inc 5.75% 2029 | 0.40% | Stock Dossier |
| 7 | S-7.62-26Sprint Corp 7.625% 2026 | 0.40% | Stock Dossier |
| 8 | BA-5.15-30Boeing Co 5.15% 2030 | 0.40% | Stock Dossier |
| 9 | BHC-6.12-25Bausch Health Cos Inc 6.125% 2025 | 0.40% | Stock Dossier |
| 10 | OXY-6.45-36Occidental Petroleum Corp 6.45% 2036 | 0.30% | Stock Dossier |
GICS 11-Sector Allocation (S47B-02)
Industry diversification across standard economic classifications
Portfolio Breakdown & Allocation Matrix
Multi-dimensional constituent classification sourced from SEC Form N-PORT and Issuer Fact Sheets (S48-Phase 2)
Sub-sector clusters reflect concentrated industry exposures beyond broad GICS sectors.
Market Cap Tier Breakdown (S47B-05)
Weighted capital size distribution of fund holdings
Look-Through Concentration Engine (S47B-03)
Calculates aggregate effective single-stock exposure across direct holdings & pooled ETFs
// Mathematical SSOT Formulation:
W_i = w_{direct, i} + ∑_f (a_f × w_{f,i})
Real-World Institutional Use-Case:
An investor holding 5% direct AAPL equity, plus 40% in VOO and 20% in QQQ, actually bears:
Vantage Portfolios look-through alerts eliminate hidden tech over-concentration and unintended double-exposure across multi-asset portfolios.