The SEC just pressed the "pause" button on multiple altcoin ETF proposals, postponing decisions on XRP and Dogecoin ETFs until mid-June — and even hinted that final decisions may not come until the fourth quarter. This is a classic SEC procedure, but it still frustrates traders who are waiting for opportunities to begin.

So which altcoin ETF is most likely to be approved first? The odds favor XRP. The spot XRP ETF from Franklin Templeton is backed by a $1.5 trillion asset manager, and Bloomberg analysts estimate its chances of approval at 75% to 90%. Legal pressure on Ripple has also eased, making regulators a bit more confident.

Even if these altcoin ETFs get the green light, will average investors "bite" on it? That's another story. Ordinary people tend to stick with Bitcoin and Ethereum — but a smooth and early win for XRP could inspire more confidence and open doors for other altcoin ETFs in the future.