News × Polymarket Gap Analysis — 2026-04-28
News × Polymarket Gap Analysis — 2026-04-28
Generated: 2026-04-28 UTC | Sources: NHK / Yahoo / BBC RSS, Guardian Open Platform API, Polymarket Gamma API, Metaculus API, Dune Analytics
Data Summary
| Source | Items | Notes |
|---|---|---|
| Polymarket markets | 50 | Top by 24h volume; 40 non-sports |
| NHK / Yahoo / BBC news | 50 | RSS + body scrape (max 3,000 chars) |
| Guardian articles | 15 | sections: world / business / politics / environment / us-news |
| Metaculus questions | 30 | order_by=hotness; binary only |
| Dune on-chain large bets | 0 | $10K+ threshold returned no rows for last 24h |
Flagged gaps (|gap| ≥ 10pp): 0
Notable timeframe splits: 2 (Iran peace, Hormuz normalization)
Iran / Middle East Cluster
Diplomatic developments (4/28)
- White House spokesperson confirmed Iran submitted a new peace proposal; the administration is "discussing it" internally (NHK).
- Wall Street Journal reports skepticism within the Trump administration; pressure-track posture remains intact (NHK).
- Trump posted on Truth Social claiming Iran wants the Strait of Hormuz reopened ASAP (Guardian; unverified).
- NPT Review Conference opened with US-Iran nuclear non-proliferation tensions in the foreground (NHK).
- PM Takaichi held phone talks with Egyptian President Sisi on de-escalation (NHK).
Polymarket — Iran-related
| Market | Yes price | 24h vol | endDate |
|---|---|---|---|
| US x Iran ceasefire extended by Apr 22 | 0.3% | $13.2M | already past, deep-OTM unwind |
| US x Iran permanent peace deal by Apr 30 | 1.1% | $0.78M | 4/30 |
| US x Iran permanent peace deal by May 31 | 29.0% | $1.38M | 5/31 |
| Trump announces end of military operations by Apr 30 | 2.8% | $2.82M | 4/30 |
| Iranian regime falls by Apr 30 | 0.2% | $2.12M | 4/30 |
| Iranian regime falls by May 31 | 3.7% | $2.47M | 5/31 |
| Strait of Hormuz traffic returns to normal by Apr 30 | 0.4% | $1.24M | 4/30 |
| Strait of Hormuz traffic returns to normal by May 15 | 19.0% | $0.95M | 5/15 |
Observation: Time-frame term structure is steep.
- April 30 deals: ~1% (effectively zero — 2-day window).
- May 31 peace deal: 29% — implied probability of new developments within a 30-day window.
- Hormuz normalization: April 0.4% → May 15 19.0%. Markets appear to price a meaningful chance of de-escalation triggered by the new Iran proposal.
- "Iranian regime falls" remains low at 3.7% even on the longer May 31 window — markets are pricing a negotiated outcome, not a regime-change outcome.
Gap vs news: News tone is broadly skeptical ("懐疑的な見方"); markets price meaningful (29%) probability of May resolution. Not a flag-eligible gap (no single market with |gap| ≥ 10pp vs an explicit news-implied probability), but the term-structure split itself is editorial-relevant.
Energy / Oil Cluster
News (4/28)
- UAE leaving OPEC (NHK, citing UAE state media): production-policy disputes with other members; Western media report the split is over coordination over output cuts.
- NY WTI crude crossed $100/bbl intraday (NHK), first time since mid-month. Year-over-year context: roughly +43% from ~$70 baseline.
- Tokyo Gas (4/28 earnings call): CFO South stated gas tariffs "may rise from around September" due to Middle East fuel cost pass-through (NHK).
- Honda abandons 2040 all-EV/FCV target due to EV segment losses; new strategy will not specify EV share (NHK).
- Idemitsu Kosan to resume crude supply to Vietnam (NHK).
- Ministerial relief packages:
- DPP (国民民主党) drafted ¥50,000 inflation handout for low-/mid-income households; demands FY supplementary budget (NHK).
- Foreign Minister Motegi to visit 4 African nations from 4/29 — resource-supply chain diversification cited (NHK).
No direct Polymarket coverage of:
- WTI level / monthly crude futures.
- Tokyo Gas tariffs / domestic energy policy.
- UAE OPEC withdrawal.
Indirect markets
- Hormuz normalization (above) is the closest proxy for crude supply normalization.
- 19% probability for normalization by May 15 vs $100+ WTI suggests crude prices remain elevated absent a clean diplomatic break.
US Monetary Policy Cluster
News
- BOJ holds rates (4/28 final decision — confirms 4/27 reporting); inflation upside risk emphasized in statement (NHK).
- FRB April meeting decision: pending (4/29 release).
Polymarket — Fed April
| Market | Yes price | 24h vol |
|---|---|---|
| No change in rates | 99.8% | $4.14M |
| Increase 25+ bps | 0.2% | $5.20M |
| Decrease 25 bps | 0.2% | $4.42M |
| Decrease 50+ bps | 0.1% | $1.82M |
Observation: Volume is asymmetric — the "raise 25bps" tail attracts significant 24h volume ($5.2M) despite 0.2% probability. This is consistent with hedging activity rather than directional belief. Total 4/24-4/28 Fed-decision volume across all four legs: ~$15.6M.
Gap: 0pp vs news consensus.
Crypto
Polymarket
- Bitcoin $150k by June 30: 1.4% ($5.82M / 24h)
- Bitcoin $80k in April: 11.0% ($0.82M / 24h)
News — no direct BTC coverage on 4/28.
Observation
The April-end $80k market at 11% is non-trivial given 2 days remaining. Implies BTC trading near or just below $80k with a modest probability of crossing the threshold.
Politics
Domestic (Japan)
- Mandelson scandal coverage by Guardian (UK politics); not relevant to Polymarket coverage.
- Trump UK royal visit (Guardian).
- Trump dinner shooting incident — first court appearance for assassination-attempt charges (NHK).
Polymarket — political (long-dated)
- Byron Donalds 2028 GOP nomination: 0.6% ($0.73M)
- (Other 2028-cycle markets fell outside top 50 by volume.)
Disasters / Domestic Japan
- 大槌町山林火災 (Iwate): day 7, second day of rain assisting suppression — no markets.
- 宮城塩釜重油流出: ministerial response meeting; livelihood support discussed — no markets.
- 北海道後発地震注意情報 lifted; experts urge continued vigilance — no markets.
- Tohoku M7.7 (4/20) follow-on activity: no Polymarket earthquake market currently inside top-50 by volume.
Guardian — Top World/Business 4/28
| Section | Headline | Polymarket coverage |
|---|---|---|
| World | Trump claims Iran wants Hormuz reopened (Truth Social) | Hormuz markets (above) |
| US news | US embassies told to deny visas to applicants citing fear of return | none |
| Business | NatWest AGM disrupted by climate protesters | none |
| US news | Apple closing first unionized US store (Towson, MD) | none |
| World | Polish-Belarusian prisoner swap (Poczobut) — US-brokered | none |
| Politics | Mandelson vetting row — Starmer privileges committee referral debate | none |
Metaculus
30 questions retrieved. 0 had community-prediction values (all null) — consistent with the documented restriction that community predictions are exposed only on ~50 specific questions to free-tier accounts. Useful for question discovery but not for direct numeric comparison with Polymarket on this run.
Action item: Apply for Bot Benchmarking Access Tier (api-requests@metaculus.com) to lift the limit to ~250 open + ~250 resolved questions.
Dune Analytics
Query returned 0 rows for $10K+ transactions to the configured CTF Exchange address in the last 24h.
Possible causes:
- Query targets
polygon.transactions.value(native MATIC); Polymarket trades USDC, which transfers via ERC-20Transferevents on the USDC contract — not native MATIC value. The query needs to be rewritten againsterc20_polygon.evt_Transferfiltered bycontract_address = USDCandto = CTF Exchange. - The CTF Exchange address used (
0x4bFb41d5B3570DeFd03C39a9A4D8dE6Bd8B8982E) may not be the primary entry point; Polymarket also uses neg-risk and resolver contracts.
Action item: Replace the query with a USDC-transfer-based filter or import a community Polymarket dashboard query.
Articles published 2026-04-28
2026-04-28-uae-opec-oil-100.md— UAE OPEC withdrawal + crude $100 + Tokyo Gas Sept warning + Honda EV retreat2026-04-28-iran-may-deal-30pct.md— Iran new proposal × the April 1.1% / May 30% term-structure split
Outstanding observations for editorial follow-up
- Term-structure trades as an editorial angle: when April→May probabilities jump 25+pp, it signals the market sees a credible 30-day catalyst. Worth surfacing as a recurring section.
- No direct macro/commodity Polymarket markets for WTI, gas tariffs, JPY/USD — the gap-analysis framework is constrained on energy macro.
- DPP ¥50,000 handout proposal is a fiscal-side response to the same supply-shock that monetary policy can't address; a future article connecting the two could complement the FRB/BOJ "do nothing" piece from 4/27.
- UAE OPEC departure has no direct Polymarket coverage despite being a structural energy-market event. Worth scanning Metaculus once community-prediction access is unlocked.