Amkor Technology, Inc. bonds AMKR
Who owns Amkor Technology, Inc.'s debt and what their own filings say it is worth. Bond prices and yields are fund-reported marks (SEC Form N-PORT) as of Jul 2026; they lag the market by about two months. AMKR stock page.
Every bond funds hold
Each bond's latest fund-reported mark. Price per 100 of face value; yield to maturity from price, coupon and maturity; spread over the matched-maturity Treasury for US-dollar bonds.
| Bond | Coupon | Maturity | Ccy | Price | Yield | Spread | Funds | Held | As of |
|---|---|---|---|---|---|---|---|---|---|
| 031652BM1 convertible | 0% none | 2031-07-15 | USD | 93.09 | — | — | 23 | $81.6M | Jul 2026 |
| 031652BL3 | 5.875% fixed | 2033-10-01 | USD | 97.29 | 6.35% | 188 bp | 33 | $41.3M | Jul 2026 |
Spread history
Median spread of the US-dollar bonds over Treasuries, month-ends with complete filings. Fund-reported.
Price history
Median fund-marked price across the bonds, per 100 of face value.
By month
Funds file on staggered quarter-ends, so each month-end is marked by the funds that reported for it; the amount held moves with which funds filed, not only with buying and selling.
| Month-end | Bonds | Held | Median price | USD yield | USD spread | Most funds on one bond |
|---|---|---|---|---|---|---|
| Jul 2026 | 2 | $122.9M | 95.19 | 6.35% | 188 bp | 33 |
| Jun 2026 | 2 | $138.9M | 109.84 | 5.80% | 146 bp | 50 |
| May 2026 | 2 | $55.4M | 103.03 | 5.79% | 146 bp | 39 |
| Apr 2026 | 1 | $42.9M | 100.55 | 5.78% | 163 bp | 35 |
| Mar 2026 | 1 | $59.4M | 99.67 | 5.93% | 185 bp | 50 |
| Feb 2026 | 1 | $36.6M | 102.08 | 5.54% | 160 bp | 36 |
| Jan 2026 | 1 | $49.4M | 101.95 | 5.56% | 152 bp | 35 |
| Dec 2025 | 1 | $50.1M | 102.19 | 5.52% | 156 bp | 59 |
| Nov 2025 | 1 | $29.8M | 101.84 | 5.58% | 166 bp | 36 |
| Oct 2025 | 1 | $51.0M | 101.75 | 5.60% | 170 bp | 45 |
| Sep 2025 | 2 | $60.6M | 100.57 | 6.14% | 238 bp | 67 |
| Aug 2025 | 1 | $30.9M | 99.91 | 6.67% | 297 bp | 16 |
| Jul 2025 | 1 | $22.7M | 99.94 | 6.65% | 277 bp | 13 |
Who holds the debt
Fund series in their latest quarterly N-PORT report, largest first, with the change in face value against each fund's own previous report. Names as reported in the filings. 41 added, 10 cut, 70 new holders and 6 exits in the latest quarter.
| Fund series | Report | Face value | Value | Change in face value |
|---|---|---|---|---|
| iShares Convertible Bond ETF iShares Trust | 2026-07-31 | $24.0M | $22.4M | new |
| State Street(R) SPDR(R) Bloomberg Convertible Securities ETF SPDR SERIES TRUST | 2026-06-30 | $16.7M | $20.0M | new |
| BrandywineGLOBAL - HIGH YIELD FUND Legg Mason Partners Investment Trust | 2026-06-30 | $18.9M | $18.9M | $0 |
| Virtus Income & Growth Fund Virtus Investment Trust | 2026-06-30 | $13.9M | $16.5M | new |
| Virtus Convertible Fund Virtus Strategy Trust | 2026-06-30 | $13.3M | $15.9M | new |
| NYLIM MacKay High Yield Corporate Bond Fund NYLIM FUNDS | 2026-07-31 | $15.2M | $14.8M | $500K |
| BrandywineGLOBAL - CORPORATE CREDIT FUND Legg Mason Partners Investment Trust | 2026-06-30 | $11.7M | $11.8M | $0 |
| iShares Broad USD High Yield Corporate Bond ETF iShares Trust | 2026-07-31 | $10.4M | $10.1M | $379K |
| Lord Abbett High Yield Fund LORD ABBETT INVESTMENT TRUST | 2026-05-31 | $8.1M | $8.3M | $2.9M |
| NYLIM MacKay Convertible Fund NYLIM FUNDS | 2026-07-31 | $8.4M | $7.8M | new |
| NYLIM VP MacKay Convertible Portfolio NYLIM VP FUNDS TRUST | 2026-06-30 | $5.9M | $7.0M | new |
| CALAMOS CONVERTIBLE & HIGH INCOME FUND | 2026-07-31 | $7.5M | $7.0M | new |
| Calamos Convertible Fund CALAMOS INVESTMENT TRUST/IL | 2026-07-31 | $7.5M | $7.0M | new |
| Virtus Artificial Intelligence & Technology Opportunities Fund | 2026-07-31 | $7.4M | $6.8M | new |
| CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | 2026-07-31 | $7.2M | $6.8M | new |
| State Street(R) SPDR(R) Portfolio High Yield Bond ETF SPDR SERIES TRUST | 2026-06-30 | $6.1M | $6.2M | $3.6M |
| NYLIM VP MacKay High Yield Corporate Bond Portfolio NYLIM VP FUNDS TRUST | 2026-06-30 | $6.1M | $6.1M | $2.2M |
| State Street(R) SPDR(R) Bloomberg High Yield Bond ETF SPDR SERIES TRUST | 2026-06-30 | $5.9M | $5.9M | $3.5M |
| JPMorgan Income Fund JPMorgan Trust I | 2026-05-31 | $5.8M | $5.8M | $250K |
| Calamos Dynamic Convertible & Income Fund | 2026-07-31 | $6.0M | $5.6M | new |
| Lord Abbett Convertible Fund LORD ABBETT INVESTMENT TRUST | 2026-05-31 | $5.0M | $5.3M | new |
| JPMorgan High Yield Fund JPMorgan Trust II | 2026-05-31 | $5.2M | $5.2M | $534K |
| Invesco Convertible Securities Fund AIM Growth Series (Invesco Growth Series) | 2026-06-30 | $4.0M | $4.8M | new |
| JPMorgan Core Plus Bond Fund JPMorgan Trust II | 2026-05-31 | $4.3M | $4.3M | $555K |
| BlackRock High Yield Portfolio BlackRock Funds V | 2026-06-30 | $4.0M | $4.0M | $0 |
Largest exits in the latest quarter (fund held the bonds in its previous report, none now): Goldman Sachs Dynamic Bond Fund ($1.6M), BlackRock Multi-Sector Income Trust ($104K), BlackRock Ltd Duration Income Trust ($76K), BlackRock Diversified Fixed Income Fund ($47K), BlackRock Core Bond Trust ($46K), ActivePassive Core Bond ETF ($6K).
ETFs holding these bonds
From each ETF's own latest N-PORT report: the issuer's bonds as a share of the ETF's net assets. A holdings list, not a recommendation.
| ETF | Report | Bonds | Face value | Value | % of net assets |
|---|---|---|---|---|---|
| ICVT iShares Convertible Bond ETF | 2026-07-31 | 1 | $24.0M | $22.4M | 0.31% |
| CWB State Street(R) SPDR(R) Bloomberg Convertible Securities ETF | 2026-06-30 | 1 | $16.7M | $20.0M | 0.32% |
| USHY iShares Broad USD High Yield Corporate Bond ETF | 2026-07-31 | 1 | $10.4M | $10.1M | 0.04% |
| SPHY State Street(R) SPDR(R) Portfolio High Yield Bond ETF | 2026-06-30 | 1 | $6.1M | $6.2M | 0.05% |
| JNK State Street(R) SPDR(R) Bloomberg High Yield Bond ETF | 2026-06-30 | 1 | $5.9M | $5.9M | 0.08% |
| JPHY JPMorgan Active High Yield ETF | 2026-05-31 | 1 | $2.5M | $2.5M | 0.11% |
| JCPB JPMorgan Core Plus Bond ETF | 2026-05-31 | 1 | $2.2M | $2.2M | 0.02% |
| JPIE JPMorgan Income ETF | 2026-05-31 | 1 | $1.9M | $1.9M | 0.02% |
| HYLB Xtrackers USD High Yield Corporate Bond ETF | 2026-05-29 | 1 | $1.5M | $1.5M | 0.04% |
| BHYB Xtrackers USD High Yield BB-B ex Financials ETF | 2026-05-31 | 1 | $1.0M | $1.0M | 0.04% |
| SCYB Schwab High Yield Bond ETF | 2026-05-31 | 1 | $983K | $989K | 0.04% |
| CARY Angel Oak Income ETF | 2026-07-31 | 1 | $720K | $701K | 0.05% |
| FBND Fidelity Total Bond ETF | 2026-05-31 | 1 | $655K | $658K | 0.00% |
| IUSB iShares Core Universal USD Bond ETF | 2026-07-31 | 1 | $615K | $599K | 0.00% |
| AOHY Angel Oak High Yield Opportunities ETF | 2026-07-31 | 1 | $560K | $545K | 0.44% |
Default risk, three ways
Stock market: distance-to-default
Distance-to-default 2.79: safer than 23% of companies (21th percentile in Technology). Market-implied, prices to 2026-10-16, balance sheet 2026-06-30.
| Equity value | $10.42B |
| Debt barrier (short-term + ½ long-term debt) | $1.32B |
| Equity volatility (1 year) | 79.2% |
| Asset value / asset volatility (solved) | $11.68B / 70.7% |
| Risk-free rate (1-year Treasury) | 4.28% |
Bond market: priced-in odds
A 188 bp spread prices in about 3.1% a year of default odds (spread ÷ (1 − 40% recovery)). Fund-reported marks as of Jul 2026; the spread also pays for liquidity and risk premium, so this overstates actual defaults.
Accounts: Altman Z
Altman Z = 2.97 (latest balance sheet). A fundamentals cross-check; see methods for the variant used.
The stock side: 13F filings
What institutions report holding in AMKR's stock and options. Options are reported at the value of the underlying shares, not the premium paid; 13F lists long positions only, lags 45 days after quarter-end, and does not show whether puts hedge a stock position.
| Quarter-end | Stock holders | Stock value | Put managers | Puts (underlying value) | Call managers | Calls (underlying value) | Convertible holders |
|---|---|---|---|---|---|---|---|
| 2026-09-30 filings still arriving | 64 | $38.0M | 0 | — | 0 | — | 0 |
| 2026-06-30 | 637 | $9.67B | 21 | $279.2M | 20 | $345.8M | 0 |
| 2026-03-31 | 511 | $4.52B | 16 | $103.2M | 21 | $157.1M | 0 |
| 2025-12-31 | 440 | $4.37B | 14 | $100.7M | 16 | $202.1M | 0 |
| 2025-09-30 | 374 | $3.07B | 14 | $25.9M | 15 | $29.3M | 0 |
| 2025-06-30 | 337 | $2.36B | 17 | $228.5M | 11 | $20.3M | 1 |
Sources: fund holdings and fund-reported marks from SEC Form N-PORT (published about 60 days after each month-end); 13F filings; House and Senate periodic transaction reports and OGE Form 278-T; Treasury yields from FRED. Findings from filings, not advice. How each number is computed.