MKS Inc. bonds MKSI
Who owns MKS 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. MKSI 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 |
|---|---|---|---|---|---|---|---|---|---|
| 55306NAB0 convertible | 1.25% fixed | 2030-06-01 | USD | 205.09 | — | — | 32 | $334.0M | Jul 2026 |
| YI4263889 | 4.25% fixed | 2034-02-15 | EUR | 96.64 | 4.79% | — | 14 | $31.2M | Jul 2026 |
| YI4245548 | 4.25% fixed | 2034-02-15 | EUR | 96.71 | 4.78% | — | 7 | $20.2M | Jul 2026 |
Spread history
Median spread of the US-dollar bonds over Treasuries, month-ends with complete filings. Fund-reported.
Not enough US-dollar bonds with a yield.
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 | 3 | $385.4M | 96.71 | — | — | 32 |
| Jun 2026 | 3 | $282.5M | 98.74 | — | — | 50 |
| May 2026 | 2 | $116.7M | 158.81 | — | — | 24 |
| Apr 2026 | 3 | $477.9M | 96.71 | — | — | 37 |
| Mar 2026 | 3 | $194.9M | 95.54 | — | — | 42 |
| Feb 2026 | 3 | $147.8M | 100.01 | — | — | 23 |
| Jan 2026 | 3 | $445.3M | 100.00 | — | — | 32 |
| Dec 2025 | 1 | $133.3M | 127.72 | — | — | 33 |
| Nov 2025 | 1 | $153.5M | 126.01 | — | — | 22 |
| Oct 2025 | 1 | $273.7M | 120.02 | — | — | 33 |
| Sep 2025 | 1 | $144.2M | 109.62 | — | — | 40 |
| Aug 2025 | 1 | $120.7M | 100.49 | — | — | 21 |
| Jul 2025 | 1 | $207.9M | 97.61 | — | — | 27 |
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. 29 added, 60 cut, 18 new holders and 13 exits in the latest quarter.
| Fund series | Report | Face value | Value | Change in face value |
|---|---|---|---|---|
| Franklin Convertible Securities Fund Franklin Investors Securities Trust | 2026-07-31 | $40.0M | $82.0M | $0 |
| State Street(R) SPDR(R) Bloomberg Convertible Securities ETF SPDR SERIES TRUST | 2026-06-30 | $21.2M | $62.4M | $3.2M |
| iShares Convertible Bond ETF iShares Trust | 2026-07-31 | $29.5M | $60.5M | $4.5M |
| NYLIM VP MacKay Convertible Portfolio NYLIM VP FUNDS TRUST | 2026-06-30 | $16.4M | $48.2M | $0 |
| ABSOLUTE CONVERTIBLE ARBITRAGE FUND Unified Series Trust | 2026-06-30 | $12.3M | $36.2M | $24K |
| Invesco Equity and Income Fund AIM Counselor Series Trust (Invesco Counselor Series Trust) | 2026-05-31 | $16.1M | $35.6M | -$19.7M |
| NYLIM MacKay Convertible Fund NYLIM FUNDS | 2026-07-31 | $15.8M | $32.4M | $0 |
| Calamos Market Neutral Income Fund CALAMOS INVESTMENT TRUST/IL | 2026-07-31 | $15.0M | $30.8M | $0 |
| Fidelity Convertible Securities Fund Fidelity Financial Trust | 2026-05-31 | $10.2M | $22.5M | -$2.8M |
| BlackRock Strategic Income Opportunities Portfolio BlackRock Funds V | 2026-06-30 | $18.2M | $20.5M | $0 |
| CALAMOS CONVERTIBLE & HIGH INCOME FUND | 2026-07-31 | $9.2M | $19.0M | -$6.5M |
| Virtus Artificial Intelligence & Technology Opportunities Fund | 2026-07-31 | $9.0M | $18.5M | -$1.5M |
| Calamos Convertible Fund CALAMOS INVESTMENT TRUST/IL | 2026-07-31 | $9.0M | $18.5M | -$6.0M |
| CALAMOS CONVERTIBLE OPPORTUNITIES & INCOME FUND | 2026-07-31 | $8.8M | $18.0M | -$5.5M |
| iShares Flexible Income Active ETF BlackRock ETF Trust II | 2026-07-31 | $16.1M | $18.0M | $0 |
| Virtus Income & Growth Fund Virtus Investment Trust | 2026-06-30 | $5.1M | $14.9M | -$5.1M |
| Calamos Dynamic Convertible & Income Fund | 2026-07-31 | $7.2M | $14.9M | -$5.2M |
| Virtus Convertible Fund Virtus Strategy Trust | 2026-06-30 | $4.9M | $14.4M | -$4.7M |
| Columbia Convertible Securities Fund COLUMBIA FUNDS SERIES TRUST | 2026-05-31 | $6.0M | $13.2M | -$3.0M |
| Fidelity Advisor Multi-Asset Income Fund Fidelity School Street Trust | 2026-06-30 | $4.1M | $12.1M | -$815K |
| Lord Abbett Convertible Fund LORD ABBETT INVESTMENT TRUST | 2026-05-31 | $5.4M | $11.9M | $410K |
| Nationwide Strategic Income Fund Nationwide Mutual Funds | 2026-07-31 | $10.5M | $11.7M | $0 |
| JPMorgan Global Bond Opportunities Fund JPMorgan Trust I | 2026-05-31 | $5.3M | $10.6M | -$2.2M |
| Invesco Convertible Securities Fund AIM Growth Series (Invesco Growth Series) | 2026-06-30 | $3.5M | $10.3M | -$2.0M |
| American Beacon SSI Alternative Income Fund AMERICAN BEACON FUNDS | 2026-06-30 | $2.9M | $8.6M | $631K |
Largest exits in the latest quarter (fund held the bonds in its previous report, none now): CALAMOS STRATEGIC TOTAL RETURN FUND ($14.2M), Calamos Growth & Income Fund ($10.8M), Invesco V.I. Equity and Income Fund ($3.9M), VY(R) INVESCO EQUITY AND INCOME PORTFOLIO ($1.3M), JPMorgan Strategic Income Opportunities Fund ($872K), Calamos Global Convertible Fund ($633K), PGIM Global High Yield Fund, Inc. ($600K), Payden Global Fixed Income Fund ($450K), Strategic Advisers Core Income Fund ($200K), 1290 Loomis Sayles Multi-Asset Income Fund ($101K).
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 |
|---|---|---|---|---|---|
| CWB State Street(R) SPDR(R) Bloomberg Convertible Securities ETF | 2026-06-30 | 1 | $21.2M | $62.4M | 1.01% |
| ICVT iShares Convertible Bond ETF | 2026-07-31 | 1 | $29.5M | $60.5M | 0.84% |
| JFLX JPMorgan Flexible Debt ETF | 2026-05-31 | 1 | $1.4M | $3.0M | 0.23% |
| FBND Fidelity Total Bond ETF | 2026-05-31 | 1 | $608K | $1.3M | 0.01% |
| FCVT First Trust SSI Strategic Convertible Securities ETF | 2026-07-31 | 1 | $562K | $1.2M | 1.14% |
| SYFI AB Short Duration High Yield ETF | 2026-05-31 | 1 | $964K | $1.1M | 0.12% |
| EUHY iShares Euro High Yield Corporate Bond USD Hedged ETF | 2026-07-31 | 1 | $525K | $586K | 0.24% |
| XAGG Eaton Vance Income Opportunities ETF | 2026-06-30 | 1 | $155K | $457K | 0.04% |
| HYFI AB High Yield ETF | 2026-05-31 | 1 | $389K | $441K | 0.13% |
| HTRB Hartford Total Return Bond ETF | 2026-07-31 | 1 | $153K | $170K | 0.01% |
| FSYD Fidelity Sustainable High Yield ETF | 2026-05-31 | 1 | $55K | $121K | 0.10% |
| NBFC Neuberger Flexible Credit Income ETF | 2026-07-31 | 1 | $100K | $111K | 0.15% |
| GHYG iShares US & Intl High Yield Corp Bond ETF | 2026-07-31 | 1 | $100K | $111K | 0.06% |
| NFLT Virtus Newfleet Multi-Sector Bond ETF | 2026-07-31 | 1 | $46K | $94K | 0.02% |
| OBND State Street(R) Loomis Sayles Opportunistic Bond ETF | 2026-06-30 | 1 | $24K | $71K | 0.12% |
Default risk, three ways
Stock market: distance-to-default
Distance-to-default 3.41: safer than 30% of companies (28th percentile in Technology). Market-implied, prices to 2026-10-16, balance sheet 2026-06-30.
| Equity value | $14.58B |
| Debt barrier (short-term + ½ long-term debt) | $2.67B |
| Equity volatility (1 year) | 61.0% |
| Asset value / asset volatility (solved) | $17.14B / 51.9% |
| Risk-free rate (1-year Treasury) | 4.28% |
Bond market: priced-in odds
No US-dollar bond with a yield to compute it from.
Accounts: Altman Z
Altman Z = 2.40 (latest balance sheet). A fundamentals cross-check; see methods for the variant used.
The stock side: 13F filings
What institutions report holding in MKSI'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 | 65 | $195.3M | 0 | — | 0 | — | 2 |
| 2026-06-30 | 770 | $30.18B | 18 | $318.7M | 18 | $2.16B | 57 |
| 2026-03-31 | 606 | $12.70B | 12 | $50.6M | 14 | $496.0M | 62 |
| 2025-12-31 | 505 | $10.58B | 12 | $56.5M | 14 | $321.7M | 57 |
| 2025-09-30 | 427 | $8.34B | 11 | $43.6M | 14 | $250.3M | 58 |
| 2025-06-30 | 384 | $6.96B | 11 | $14.6M | 13 | $195.8M | 55 |
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.