Which companies added to S&P 500 in Q4 2026?

Polymarket Closes Dec 31 · $19.0K traded · prices read 5 min ago

The odds

48%Cheniere Energy (LNG)
S&P 500 now 7,353.73 −4.36%
  • Cheniere Energy (LNG)48%▲ 5
  • Astera Labs (ALAB)42%▼ 9
  • Rocket Companies (RKT)42%▼ 3
  • SoFi Technologies (SOFI)28%▼ 8
  • MongoDB (MDB)25%▲ 2
  • Credo Technology (CRDO)21%▼ 9
  • Alnylam Pharmaceuticals (ALNY)16%▲ 2
  • HEICO (HEI)12%▼ 1
  • Affirm Holdings (AFRM)7%▼ 6
  • Medline (MDLN)6%▲ 1
  • Strategy (MicroStrategy) (MSTR)2%

How the odds have moved

Cheniere Energy (LNG): 36% on Oct 28, 48% now.

Each outcome's chance over time, from its prices on Polymarket.

Every outcome

Outcome Chance Day Bid Ask Traded
✓ Okta (OKTA) >99% ▲ 53 100¢ 100¢ $2.7K
Cheniere Energy (LNG) 48% ▲ 5 15¢ 81¢ $2.2K
Astera Labs (ALAB) 42% ▼ 9 27¢ 57¢ $768
Rocket Companies (RKT) 42% ▼ 3 13¢ 70¢ $1.7K
SoFi Technologies (SOFI) 28% ▼ 8 12¢ 44¢ $2.0K
MongoDB (MDB) 25% ▲ 2 10¢ 39¢ $554
Credo Technology (CRDO) 21% ▼ 9 12¢ 29¢ $2.0K
Alnylam Pharmaceuticals (ALNY) 16% ▲ 2 10¢ 21¢ $1.8K
HEICO (HEI) 12% ▼ 1 10¢ 14¢ $868
Affirm Holdings (AFRM) 7% ▼ 6 3¢ 10¢ $1.1K
Medline (MDLN) 6% ▲ 1 4¢ 8¢ $1.5K
Strategy (MicroStrategy) (MSTR) 2% 1¢ 4¢ $1.7K

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