Altcoin Markets 2026 — SOL, XRP and DOGE

Bitcoin and Ethereum have their own pages in this catalog. Everything below them, Solana, XRP and Dogecoin, turned about $9,600 across Polymarket and Kalshi today.

These are all cumulative ladders: each rung asks whether a price is reached, so probabilities must fall monotonically as the strike rises. Every inversion on this page is a violation of that constraint, not a difference of opinion.

Kalshi's September XRP monthly expires tonight, and no October monthly is listed, so its slot now carries Polymarket's 2026 XRP touch ladder, the cross-exchange mirror of Kalshi's year-high book. The two disagree by ten points at $3.00.

Solana's flow is still in the far tail. Polymarket's 2026 ladder turned $4,369, and $2,561 of it, 59%, went through ↑320 at 2.6% and ↑400 at 1.25%. The rung nearest the open question, ↑140 at 52.5%, took $242.

Polymarket's 2026 touch ladder prices ↑140 at 52.5%, ↑160 at 30.5% and ↑180 at 17.9%; on the way down, ↓90 is 30.5% and ↓80 21.5%. SOL sits between those strikes.

Kalshi's year-end close ladder turned $113, pricing 100 or above at 77.5%, 150 or above at 35.5% and 200 or above at 26.5%. Touch and close are different questions, and the two books are broadly consistent.

The far tail is where the Solana money is. ↑320, priced 2.6%, took $1,972, the busiest contract in the book, and ↑400 at 1.25% took $589, against $242 through ↑140 at 52.5%.

Kalshi's 2026 high book on the left, $1,463 today: Above $2.00 prices 45% and took the most, $640; Above $2.50 is 24.5% and Above $3.00 22%. Its top is inverted, Above $4.00 at 15.5% over Above $3.50 at 15%.

Polymarket's 2026 touch ladder on the right turned $2,820 and prices ↑3.00 at 11.5%, half Kalshi's number, with $768 through that rung, its busiest. On the downside it has ↓1.20 at 46.5% and ↓1.00 at 23.5%.

Dogecoin's $1 board: before Jan 1, 2027 at 4.5% took $244 of its $259 day, before Jun 1, 2027 is 8.5%. Kalshi's 2026 return basket prices Ethereum at 52.5% and Bitcoin at 47.5% to finish the year positive, Stellar 54% and Solana 34.5%. The Solana price history runs full width below.

• XRP at $3.00: Kalshi 22%, Polymarket 11.5%. The widest cross-exchange gap on the page, on the same question to the same date. Kalshi lists no October XRP monthly.
• 59% of Solana's day went through rungs priced under 3%. $2,561 into ↑320 and ↑400, against $242 into the rung that carries the open question.
• Kalshi's XRP $4.00 rung is priced above its $3.50 rung. A monotonicity break at the top of the chain.
• Ethereum above Bitcoin in the return basket, 52.5% against 47.5%, three months from year-end.