N-2 - $ / shares

3 Months Ended

Mar. 31, 2026

Dec. 31, 2025

Cover [Abstract]

Entity Central Index Key

0002065397

Amendment Flag

false

Securities Act File Number

814-01874

Document Type

10-Q

Entity Registrant Name

ANTARES STRATEGIC CREDIT FUND II LLC

Entity Address, Address Line One

320 South Canal Street

Entity Address, Address Line Two

Suite 4200

Entity Address, City or Town

Chicago

Entity Address, State or Province

IL

Entity Address, Postal Zip Code

60606

City Area Code

312

Local Phone Number

638-4000

Entity Emerging Growth Company

true

Entity Ex Transition Period

false

General Description of Registrant [Abstract]

Risk Factors [Table Text Block]

Item 1A. Risk Factors.

For information regarding factors that could affect our results of operations, financial condition and liquidity, see the risk factors disclosed in “Item 1A. Risk Factors” of our Annual Report on Form 10-K, filed with the SEC on March 19, 2026. Additional risks and uncertainties not currently known to us or that we currently deem to be immaterial also may materially affect our business, financial condition and/or operating results. Except as set forth below, there have been no material changes during the three months ended March 31, 2026 to the risk factors set forth in “Item 1A. Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2025.

NAV Per Share

$ 24.71

$ 25.28