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SCB Classand Advisor Class [Member] Investment Strategy - Institutional - International Strategic Equities Portfolio
Sep. 30, 2025
Prospectus [Line Items]  
Strategy [Heading] PRINCIPAL STRATEGIES:
Strategy Narrative [Text Block]
The Portfolio invests, under normal circumstances, at least 80% of its net assets (plus any borrowings for investment purposes) in equity securities or other securities or instruments with similar economic characteristics, including derivatives related to equity securities. Equity securities are primarily common stocks, although, for purposes of the 80% policy, equity securities may also include preferred stocks, warrants, convertible securities, sponsored or unsponsored American Depositary Receipts (“ADRs”) and Global Depositary Receipts (“GDRs”) and equity real estate investment trusts (“REITs”). You will be notified at least 60 days prior to any change to the Portfolio’s 80% investment policy.
AllianceBernstein L.P. serves as the Portfolio’s investment manager (the “Manager”). The Manager invests the assets of the Portfolio primarily (under normal circumstances, at least 65% of net assets) in equity securities of issuers in countries that make up the Morgan Stanley Capital International (“MSCI”) All Country World Index (“ACWI”) ex USA Index, which includes both developed and emerging market countries. The Portfolio focuses on securities of large-cap and mid-cap companies. The Manager expects to allocate fund assets among issuers in many foreign countries, but not necessarily in the same proportion that the countries are represented in the MSCI ACWI ex USA Index and may invest in issuers in countries outside of the MSCI ACWI ex USA Index. The Portfolio’s exposure among non-U.S. countries may change over time based on the Manager’s assessment of market conditions and the investment merit of particular non-U.S. issuers. Under normal circumstances, the Manager invests in companies located in at least three countries other than the United States and expects to have exposure to issuers in several different countries. In determining a company’s location for purposes of the Portfolio’s investment policies and restrictions, the Manager may consider: (1) the place of domicile; (2) where the company has an established presence and conducts its business; and (3) where the company conducts a significant part of its economic activities. The Portfolio may, at times, invest significantly in emerging markets.
The Manager utilizes both fundamental and quantitative research to both determine which securities will be held by the Portfolio and to manage risk. In applying its quantitative analysis, the Manager considers a number of metrics that have historically provided some indication of favorable future returns, including metrics relating to valuation, quality, investor behavior and corporate behavior. Utilizing these resources, the Manager expects to allocate the Portfolio’s assets among issuers, industries and geographic locations to attempt to create a diversified portfolio of investments.
The Portfolio may also invest in exchange-traded funds (“ETFs”) and other investment companies from time to time.
The Portfolio expects to utilize derivatives, such as options, futures contracts, forwards and swaps. For example, the Portfolio may invest in currency derivatives as discussed below and in futures contracts to gain exposure to certain markets. Derivatives may provide a more efficient and economical exposure to market segments than direct investments, and may also be a more efficient way to alter the Portfolio’s exposure.
Fluctuations in currency exchange rates can have a dramatic impact on the returns of foreign equity securities. The Manager may employ currency hedging strategies, including the use of currency-related derivatives, to seek to reduce currency risk in the Portfolio, but it is not required to do so. The Manager may also take long and short positions in currencies or related derivatives for investment purposes, independent of any security positions. The Manager may use stock index futures contracts to gain access to certain markets.