The #Hindenburg_Omen (HO) last flashed on 9/8, 9/11, and 9/12/2023 as shown in this #NASDAQ weekly chart.

Studies have shown that all stock market crashes and severe declines between '84 and '14 were preceded by the HO.

More recent crashes (in '15, '16, '20), and the severe '21/'22 decline were also preceded by the HO.

The HO has a success rate of approximately 25% for major crashes, as noted in WSJ articles (which I've backtested and confirmed).

Note:

Sometimes the HO misfires, such as the one on 5/10/2023 (commented in green in this #NASDAQ weekly chart).