SUP-0101-0223
LOGO
AB CAP FUND, INC.
- AB Sustainable US Thematic Portfolio (the “Fund”)
Class A (Ticker: SUTAX); Class C (Ticker: SUTCX); Advisor Class (Ticker: FFTYX); Class Z (Ticker: SUTZX)
 
 
Supplement dated February 23, 2023 to the Fund’s Prospectus and Summary Prospectus dated October 31, 2022, as amended.
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The following replaces the “Performance Table” section under the heading “Bar Chart and Performance Information” in the Prospectus and Summary Prospectus for the Fund.
Performance Table
Average Annual Total Returns
(For the periods ended December 31, 2021)
 
           1 Year      Since
Inception		  
Advisor Class*,**
   Return Before Taxes      26.26 %       21.98 % 
    Return After Taxes on Distributions      22.88 %       21.04 % 
    Return After Taxes on Distributions and Sale of Fund Shares      16.62 %       17.67 % 
Class A**
   Return Before Taxes      20.57 %       20.52 % 
Class C**
   Return Before Taxes      24.01 %       20.77 % 
Class Z**
   Return Before Taxes      26.26 %       21.98 % 
    S&P 500 Index
    (reflects no deduction for fees, expenses, or taxes)
      28.71 %       18.12 % 
 
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After‑tax Returns:
  –
Are an estimate, which is based on the highest historical individual federal marginal income tax rates, and do not reflect the impact of state and local taxes; actual after‑tax returns depend on an individual investor’s tax situation and are likely to differ from those shown; and
  –
Are not relevant to investors who hold Fund shares through tax‑deferred arrangements such as 401(k) plans or individual retirement accounts.
**
Inception date for Advisor Class shares is June 28, 2017. Inception date for Class A shares and Class Z shares is January 31, 2022. Inception date for Class C shares is April 29, 2022. Performance information for Class A shares, Class C and Class Z shares for periods prior to their inception date is the performance of the Fund’s Advisor Class shares adjusted to reflect the expenses of Class A shares, Class C shares and Class Z shares, respectively.
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This Supplement should be read in conjunction with the Prospectuses for the Fund.
You should retain this Supplement with your Prospectus(es) for future reference.
 
 
The [A/B] Logo is a service mark of AllianceBernstein and AllianceBernstein® is a registered trademark used by permission of the owner, AllianceBernstein L.P.
 
 
 
 
SUP-0101-0223