SK Hynix Nand Product Solutions Corp. 401(k) Review & Grade
Solidigm 401(k) Plan
Rancho Cordova, CAManufacturing1,113 active participantsPlan year 2024✓ Auto-enroll
Estimate from the plan's Form 5500 filing · How we grade
$8,867Employer $ per active participant
$21,544Employee $ saved per active participant
0.01%Direct admin cost, % of plan assets
$160.6MNet plan assets, end of year
$109,866Average balance per account
Score breakdown
- Employer generosity47.3 / 5095th percentile for employer $ per participant
- Low cost24.2 / 2597th percentile for low admin cost vs. same-size plans
- Employee saving15.0 / 15100th percentile for employee $ per participant
- Plan features10 / 10Auto-enrollment, Default investment
- Red-flag deductions-13 pts2 issues reported on the filing
Total score84 / 100 · Grade A
This plan vs. peers
Peers: Manufacturing plans with 500–2,499 active participants (2,376 plans).
| Measure | Percentile |
|---|---|
| Employer $ per participant | 95th |
| Lower admin cost | 97th |
| Employee saving | 100th |
| Peers that auto-enroll | 59% |
Get the monthly 401(k) report card
The best and worst plans, new grades as filings post. One email a month, no spam.
Red flags from the filing
Benefits not paid when due: the plan reported failing to pay some benefits on time.
Corrective distributions: the plan refunded $199,595 in contributions, which usually means it failed annual nondiscrimination testing.
What to do if you're in this plan
- SK Hynix Nand Product Solutions put in about $8,867 per active participant, more than the typical peer ($2,320). Contribute at least enough to collect the full match. Skipping it leaves part of your pay on the table.
- The filing shows total dollars, not the match formula. Ask HR for the Summary Plan Description so you know the exact match and vesting schedule.
- Fund expense ratios aren't in the filing. Look them up in your 404(a)(5) fee disclosure and favor low-cost index or target-date funds.
- The plan auto-enrolls employees. Check your default contribution rate. Defaults are often lower than what it takes to get the full match.
- Changing jobs? You can usually leave the money in the plan, move it to your new employer's plan, or roll it into an IRA. Don't cash out: you'd owe taxes and possibly a 10% penalty.
The raw numbers from the filing
| Employer contributions | $9,869,441 |
| Participant (employee) contributions | $23,978,809 |
| Other contributions (incl. rollovers in) | $12,159,690 |
| Administrative expenses paid from the plan | $18,645 |
| Benefits paid out | $17,194,945 |
| Net assets, start / end of year | $111.2M / $160.6M |
| Active participants, start / end of year | 1,123 / 1,103 |
| Participants with account balances | 1,462 |
| Auto-enrollment (feature code 2S) | Yes |
| Auditor | Macias, Gini & O'connell LLP |
Largest service providers (Schedule C)
| Fidelity Investments Institutional | $18,645 reported compensation |
Source: DOL EFAST2 Form 5500 filing, acknowledgment ID 20250827144449NAL0005076931001, received 2025-08-27, EIN 86-2384522, plan #001, plan year 2024-01-01 to 2024-12-31. Verify at efast.dol.gov.