CLIENT DISCLOSURE
Morgan Stanley Institutional Equity Division | Effective October 16, 2026
FOR INSTITUTIONAL USE ONLY – Not a product of the Morgan Stanley Research Department
“Extended Hours Trading” are the hours of operation before and after official market hours. The “official market hours” of US equities and options exchanges typically run from 9:30 a.m. to 4:00 p.m. ET (or 4:15 p.m. ET for certain index and options products).
Trading during Extended Hours Trading involves material trading risks, including the possibility of lower liquidity, high volatility, changing prices, unlinked markets, an exaggerated effect from news announcements, wider spreads, the absence of an updated underlying index or portfolio value or intraday indicative value, and lack of regular trading in the securities underlying the index or portfolio. Exchange and FINRA rules, require Morgan Stanley to make you aware of these risks, which include and may not be limited to:
Risk of Lower Liquidity. Liquidity refers to the ability of market participants to buy and sell securities. Generally, the more orders that are available in a market, the greater the liquidity. Liquidity is important because with greater liquidity it is easier for investors to buy or sell securities, and as a result, investors are more likely to pay or receive a competitive price for securities purchased or sold. There may be lower liquidity in extended hours trading as compared to regular trading hours. As a result, your order may only be partially executed, or not at all.
Risk of Higher Volatility. Volatility refers to the changes in price that securities undergo when trading. Generally, the higher the volatility of a security, the greater its price swings. There may be greater volatility in extended hours trading than in regular trading hours. As a result, your order may only be partially executed, or not at all, or you may receive an inferior price when engaging in extended hours trading than you would during regular trading hours.
Risk of Changing Prices. The prices of securities traded in extended hours trading may not reflect the prices either at the end of regular trading hours, or upon the opening the next morning. As a result, you may receive an inferior price when engaging in extended hours trading than you would during regular trading hours.
Risk of Unlinked Markets. Depending on the extended hours trading system or the time of day, the prices displayed on a particular extended hours trading system may not reflect the prices in other concurrently operating extended hours trading systems dealing in the same securities. Accordingly, you may receive an inferior price in one extended hours trading system than you would in another extended hours trading system.
Risk of News Announcements. Normally, issuers make news announcements that may affect the price of their securities after regular trading hours. Similarly, important financial information is frequently announced outside of regular trading hours. In extended hours trading, these announcements may occur during trading, and if combined with lower liquidity and higher volatility, may cause an exaggerated and unsustainable effect on the price of a security.
Risk of Wider Spreads. The spread refers to the difference in price between what you can buy a security for and what you can sell it for. Lower liquidity and higher volatility in extended hours trading may result in wider than normal spreads for a particular security.
Additional options only risks –
Risk of Lack of Calculation or Dissemination of Underlying Index Value or Intraday Indicative Value (“IIV”) and Lack of Regular Trading in Securities Underlying Indexes. For certain products, an updated underlying index or portfolio value or IIV will not be calculated or publicly disseminated during extended hours trading. Since the underlying index or portfolio value and IIV are not calculated or widely disseminated during extended hours trading, an investor who is unable to calculate implied values for certain products during extended hours trading may be at a disadvantage to market professionals. Additionally, securities underlying the indexes or portfolios will not be regularly trading as they are during regular trading hours, or may not be trading at all. This may cause prices during extended hours trading to not reflect the prices of those securities when they open for trading.
Please contact your Morgan Stanley sales representative for additional information and questions.