Gabe15

Bunchy Top is a virus with its sole vector being a specific kind of aphid which I would think extremely unlikely to be in your area. The plants also do not show symptoms often at such a young age, as your plant is. In fact your plant looks rather healthy to me. Does it have similar growing conditions to your other bananas? Perhaps its a soil issue or a weak TC sport (unlikely), or lack of enough sunlight? Sometimes I've had plants start of really weak for a long time, but eventually they all ended up having their growth spurt at some point.

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Growing bananas in Colorado, Washington, Hawaii since 2004. Commercial banana farmer, 200+ varieties.