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Volmarket is a non-custodial Solana protocol where you predict the volume signal on a live match’s odds — settled trustlessly against TxLINE’s on-chain odds proofs. The app runs at volmarket.xyz on Solana devnet.

The core idea

Most prediction markets settle “who won.” Volmarket lets you predict the second-order signal on each odd of a live match — where the money builds support and resistance, and whether the line holds or breaks. Each betting line (1X2, Over/Under) becomes a chart with a live volume profile. You pick an odd, read its signal, and predict it. Predictions are non-custodial USDC escrows that settle on-chain from TxLINE’s cryptographic proofs — no operator holds funds, and there is no oracle you have to trust. You can predict solo or pool with a group, and combine outcomes across odds into one shareable prediction code.

What you can do

  • Browse the board. Live and upcoming matches, each showing a live signal sparkline.
  • Read a signal. Open a match, select any odd, and read its volume signal — a live probability tape plus a support/resistance profile derived from on-chain stake.
  • Predict it. Choose Holds (the odd stays at or above a support level) or Breaks (it reaches a resistance level) within a time window you pick. Combine several predictions into one slip with a copyable share code.
  • Group up. Create a public or invite-only group with a per-group fee, pool predictions into a shared market position, and settle on-chain.

What makes it non-manipulable

Volume shapes what you see; it never decides what you get paid. The level a market settles on is snapped from TxLINE’s anchored odds, and the value that settles it is a proven datapoint from the same feed. Manufacturing internal stake moves the picture, not the payout. See How signals work for how that separation is enforced, and Settlement and proof verification for the settlement design.

Current state

The full create → deposit → resolve → claim cycle and the group create → join → group_deposit → claim_group cycle both run end-to-end on devnet with real transaction signatures, against real TxLINE odds. The real validate_odds CPI is verified on devnet.
Some capabilities appear in the interface but are not fully built:
  • Two-sided liquidity is house-seeded, not a market. The keeper bootstraps the opposing pool from its own USDC so a winner is paid the level’s implied fixed odds rather than a thin pari-mutuel share. There is no order book and no external market maker.
  • Group activity stats (preds, pnl, wr on group cards) are not tracked on-chain and read 0 for real groups. The board also seeds demo group rows that are not on-chain accounts. Group escrow is real — create_group, group_deposit, and claim_group are live instructions, and per-member accounting lives in on-chain GroupPool and GroupPosition accounts.
  • AI insights are not implemented.
This is a betting-adjacent product, and regulatory treatment varies by jurisdiction. Seek counsel before operating in specific markets.