How do you direct your monthly investments into the Stars model next year?

Let’s assume TQQQ closes 2025 at $100. Doesn’t matter what your portfolio contains. That can be upgraded gradually over time.

Anytime you make additional contributions to your portfolio, if TQQQ is above $100, buy 60% SPY and 40% TQQQ. I am assuming you are using the best version of the model. If not use the maximum TQQQ that you desire.

If TQQQ is below $100 when you make additional contributions, buy 100% TQQQ until you reach 40% TQQQ in your whole portfolio. At that point you invest the remainder of your contributions in a 60% SPY / 40% TQQQ split.

Doing this procedure allows you to take advantage of mid year corrections.

If you prefer to make trades only once a year, direct your contributions to SPY and rebalance at year end to the desired percent TQQQ. Over many years the difference in performance of the two approaches is going to be minor.