Taiko bridge exploit halts L2 as Polymarket puts ETH above $1,400 at 99%
Taiko Bridge Exploit Triggers Layer-2 Halt, but Polymarket Still Favors Ethereum Above $1,400 on June 26
Taiko halted block production on its Ethereum layer-2 network after a bridge exploit drained about $1.7 million, underscoring ongoing cross-chain security risks. On Polymarket, traders still price the baseline Ethereum-above ladder for June 26 as highly likely, with the $1,400 strike leading at 99.15% Yes.
Key Takeaways
- Polymarket prices a 99.15% chance Ethereum is above $1,400 on June 26 (0.85% No).
- Odds remain heavily skewed to the upside even after news of a Taiko bridge exploit and network halt.
- The market resolves at 16:00 UTC on June 26, 2026; odds have not changed over the past 24 hours or 7 days.
Taiko, an Ethereum layer-2 network, halted block production and urged users to withdraw funds after an attacker exploited its bridge, with the team estimating losses at about $1.7 million before outflows were stopped. Taiko said the attacker forged cross-chain withdrawal proofs, allowing fake withdrawal requests to be accepted on Ethereum without corresponding deposits on Taiko, draining the bridge and its token vault until activity was frozen. The TAIKO token, with a market capitalization of $14.5 million, fell more than 20% since midnight UTC. A security firm’s initial investigation pointed to a signing key used for proof generation that was left publicly accessible on GitHub, which could have allowed fraudulent proofs to be signed and validated. Taiko told users to withdraw from every bridge on the network, asked centralized exchanges to suspend TAIKO deposits, and said it would publish a full incident report, while noting the exploit resembled cross-chain messaging flaws tied to more than $340 million in bridge hacks this year.
Polymarket Data: $188K Volume as ETH Above $1,400 Holds 99.15% Yes (vs $1,500 at 94.1%)
The Polymarket ladder "Ethereum above ___ on June 26?" has about $188,330 in volume and is clustered at high-probability strikes near the bottom of the range. Traders price Ethereum above $1,400 at 99.15% Yes versus 0.85% No, and above $1,500 at 94.1% Yes versus 5.9% No. The curve steepens higher up, with $1,700 at 32.5% Yes / 67.5% No and $1,800 at 5.45% Yes / 94.55% No, signaling limited conviction for a larger move by the June 26, 16:00 UTC resolution time.
Updates on Taiko’s incident report, any confirmed root-cause findings around proof-signing keys, and exchange or bridge restrictions related to TAIKO that could spill into broader Ethereum ecosystem risk sentiment ahead of the June 26 resolution.
Beyond Ethereum Price Bets: Other High-Volume Crypto and Macro Contracts Polymarket Traders Are Watching
Beyond the near-dated Ethereum ladder, Polymarket activity is concentrated in broader crypto price-range contracts, led by “What price will Bitcoin hit in 2026?” with $43,993,997 in volume and “What price will Bitcoin hit in June?” with $24,016,991. Traders are also crowding into “What price will Ethereum hit in June?” at $5,296,748 in volume, while the shorter-dated “Bitcoin above ___ on June 24?” shows 99.45% for 56,000 with $426,382 traded, underscoring how positioning often migrates across time horizons and assets rather than staying tied to a single network narrative.
By the Numbers
- Platform: Polymarket
- Market: Ethereum above ___ on June 26?
- Contract type: Price strike ladder: each rung has separate Yes/No; Yes means the spot price is above that USD strike at settlement.
- Resolution window: Jun 26, 2026 (UTC)
- Status: Active (open for trading)
- Volume: ~$188,330
- 24h change: +0.0 pp
Top strike rungs
| Strike | Yes | No |
|---|---|---|
| 1,400 | 99.2% | 0.8% |
| 1,200 | 99.0% | 1.1% |
| 1,300 | 98.7% | 1.3% |
| 1,500 | 94.1% | 5.9% |
+7 more strikes not shown
Related Markets
- What price will Bitcoin hit in June? — ↓ 70,000 100%
- What price will Ethereum hit in June? — ↓ 1,900 100%
- What price will Bitcoin hit in 2026? — ↓ 85,000 100%
- Bitcoin above ___ on June 24? — 56,000 99%