Citigroup Global Markets Holdings Inc. is offering Autocallable Securities linked to the S&P 500 Futures 40% Edge Volatility 6% Decrement Index (USD) ER, due January 31, 2030. The securities do not pay interest and do not guarantee principal repayment at maturity.The securities offer potential automatic early redemption at a premium if the underlying index closes at or above its initial value on specified valuation dates. If not redeemed early, payment at maturity depends on the final index value. Investors face 1:1 downside exposure if the final index value is below the barrier level.The underlying index tracks S&P 500 futures with 40% volatility targeting and a 6% annual decrement. It may significantly underperform the S&P 500 due to leverage, financing costs, and the decrement. The estimated value of the securities on the pricing date will be less than the issue price. CGMI will receive an underwriting fee and may profit from expected hedging activity.

Citigroup Global Markets Holdings Inc. is offering Autocallable Securities linked to the S&P 500 Futures 40% Edge Volatility 6% Decrement Index (USD) ER, due January 31, 2030. The securities do not pay interest and do not guarantee principal repayment at maturity.The securities offer potential automatic early redemption at a premium if the underlying index closes at or above its initial value on specified valuation dates. If not redeemed early, payment at maturity depends on the final index value. Investors face 1:1 downside exposure if the final index value is below the barrier level.The underlying index tracks S&P 500 futures with 40% volatility targeting and a 6% annual decrement. It may significantly underperform the S&P 500 due to leverage, financing costs, and the decrement. The estimated value of the securities on the pricing date will be less than the issue price. CGMI will receive an underwriting fee and may profit from expected hedging activity.