Humana rebounds, Aetna slips: Winners and losers in the 2027 MA star ratings

CMS released 2027 Medicare Advantage star ratings, with Humana rebounding to 93% of enrollees in high-scoring plans, up from 20% in 2026. Clover Health saw all members in four-star plans, while Aetna slipped. Analysts rated results as positive for Humana, neutral for Elevance, Centene, and UnitedHealthcare, and negative for Aetna and Alignment Healthcare.

Original reporting
Published Oct 9, 2026, 2:57 PM UTC
Analysis
AlphAI AI DeskAI-generated
Added to AlphAI Oct 10, 2026, 3:13 AM UTC. Informational, not investment advice.
How this was made
AlphAI summarizes source reporting and applies a structured AI analysis for relevance, timing, sentiment and ticker impact. Always verify material claims with the original publisher.
AlphAI market briefSector analysis
Primary signal
$HUM
Bullish
high confidence
Mentioned
$HUM · $CLOV · $ELV · $CNC · $CVS
Relevance
7/10
AlphAI data visualization · based on fiercehealthcare.com
Decision brief

The 30-second read

$HUMBullishMed
01

Why it matters

Star rating shifts affect quality bonus payments, a key revenue component for MA insurers.

02

Market read

The new ratings provide fresh data that can move insurer stocks as investors reassess quality bonus exposure.

03

What to watch

Regulatory metric changes and pending litigation could cause future rating volatility.

Relevance 7/10Novelty 7/10Timing: today

Background

CMS released 2027 Medicare Advantage star ratings, the first public data for the upcoming plan year.

Company-level read

Ticker impact

$HUMBullishHigh confidence
Context

Humana's share of members in 4+ star MA plans jumps to 93% for 2027, up from 20% in 2026.

Expected impact

likely upside as investors price higher bonus revenue.

Evidence & confidence

Star rating jump signals stronger future cash flow from Medicare Advantage.

$CLOVBullishMedium confidence
Context

Clover Health moves from 3% to 100% of members in 4+ star plans for 2027 after lawsuit‑driven metric changes.

Expected impact

potential upside if market views rating as sustainable.

Evidence & confidence

Legal win improves metrics, but litigation risk remains.

$ELVNeutralLow confidence
Context

Elevance Health receives a slightly positive rating outcome for 2027.

Expected impact

limited impact, likely flat to slight rise.

Evidence & confidence

Rating change is minor and not a major driver.

$CNCBearishMedium confidence
Context

Centene's 4+ star member share falls to 9% for 2027 after a brief rise.

Expected impact

likely downside as quality bonus payments may shrink.

Evidence & confidence

Sustained low star ratings hurt revenue prospects.

$CVSBearishMedium confidence
Context

Aetna (CVS Health) sees 4+ star member share fall to 69% for 2027, a decline from 81% in 2026.

Expected impact

potential downside pressure.

Evidence & confidence

Aetna's lower rating directly affects CVS's MA segment earnings.

Market effects

Medicare Advantage star ratings reshape quality bonus expectations for all MA insurers.

U.S. health‑care sector may see re‑rating of insurers based on star outcomes.

Limited to U.S. insurers; no direct global impact.

Counterpoint

Investors may view rating changes as temporary and focus on underlying enrollment growth.

Key entities

  • Centers for Medicare & Medicaid Services

    Released the 2027 star ratings.

  • Capstone

    Provided commentary on rating impacts.

Related articles

$HUMMedAI 8/10

Humana Rebounds in Medicare Advantage Star Ratings for 2027

Humana's Medicare Advantage star ratings improved significantly for 2027, with 93% of members in plans rated 4 stars or higher, up from 41% in 2026. This could generate $3B+ in additional revenue in 2028, according to TD Cowen. Alignment Healthcare saw a major decline, potentially losing $170M in revenue. CMS changed its star ratings methodology for 2027.