OTCKX · MFS

MFS Mid Cap Growth Fund Class R6

See how the latest disclosed equity holdings combine into this share class’s P/E and P/S. Daily NAV and the exact ISIN remain distinct for this share class.

ISIN US5529875545Income share classNAV US$29.19 as of 1 October 2026Holdings dated 31 May 2026Meets ratio/fox coverage standard

Core valuation

Trailing P/E48.53×97.89% coverage
Latest-quarter run-rate P/E38.65×98.82% coverage
Trailing P/S3.20×97.20% coverage
Latest-quarter run-rate P/S3.01×97.66% coverage

Coverage is the share of positive eligible-equity holding value represented in each metric. The reliability standard is at least 90.00% coverage with no individual uncovered holding above 1.00%. Missing inputs are excluded, never treated as zero. Signed ordinary/common earnings remain in aggregate P/E.

Largest reported holdings

Largest reported mutual-fund holdings with weights and trailing valuation ratios
HoldingWeightTrailing P/ETrailing P/S
MPWRMonolithic Power Systems, Inc.4.26%83.40×20.43×
HWMHowmet Aerospace, Inc.3.95%48.70×9.99×
PWRQuanta Services, Inc.3.34%75.08×3.03×
TTWOTake-Two Interactive Software, Inc.2.72%-118.83×5.69×
LYVLive Nation Entertainment, Inc.2.62%-152.37×1.50×
NTRANatera, Inc.2.18%-306.11×21.75×
TKOTKO Group Holdings, Inc.2.12%145.15×6.28×
MASIMasimo Corp.2.12%123.50×6.05×
ASNDAscendis Pharma A/S2.07%17.23×12.21×
BURLBurlington Stores, Inc.1.95%27.77×1.45×

* A holding uses its latest full-year result only when both trailing and latest-quarter inputs are unavailable; open the stock for the exact year end.

Most similar funds

Ranked by shared weight across matching disclosed company holdings and explicitly reported same-currency cash.

  1. US0250837673 · Heritage Fund36.91% holdings overlap · United States
  2. US64122Q5238 · Neuberger Mid Cap Growth Fund32.04% holdings overlap · United States
  3. US74441C1053 · PGIM Jennison Mid-Cap Growth Fund31.70% holdings overlap · United States
  4. US9499153750 · Allspring Mid Cap Growth Fund31.69% holdings overlap · United States
  5. US3547133310 · Franklin Small-Mid Cap Growth Fund30.91% holdings overlap · United States

Sources and freshness

NAV and share-class identity come from MFS’s official product evidence. Holdings come from the issuer’s public holdings disclosure and are normalised to the shared stock look-through model.

Open official holdings sourceOpen official NAV sourceOpen official FX source