Heat oven to 250°. Stir together Chex, popcorn, both kinds of Goldfish and the bagel chips. Whisk together butter, syrup, soy sauce and cinnamon. Drizzle over Chex mixture; stir well.
Spread mixture onto a rimmed baking sheet. Bake at 250° for 40 minutes, stirring every 15 minutes, or until golden. Cool completely.