Evidence: Predictop market 604854 asks whether Alphabet will be the 2nd largest company at end of May, with resolution_date 2026-05-31 06:00 UTC. Source hierarchy/provenance: CompaniesMarketCap live/current public ranking fetched 2026-05-31 02:20 UTC listed NVIDIA #1 at about $5.215T, Alphabet #2 at about $4.596T, Apple #3 at about $4.535T, and Microsoft #4 at about $3.109T; the page warns stock prices can be delayed by minutes to hours. Corroborating secondary source: Motley Fool's largest-companies article says its ranking table is as of May 29, 2026 and lists Nvidia #1, Alphabet #2 around $4.7T, Apple #3 around $4.6T, Microsoft #4 around $3.2T, while also containing some internal table inconsistencies. Threshold math: Alphabet's cushion over Apple is roughly $0.061T on CompaniesMarketCap, about $61B or 1.3% of Alphabet's market cap; over Microsoft the cushion is about $1.49T, so the live question is mostly Alphabet vs Apple, not Microsoft/Broadcom/Tesla. I choose YES at moderate confidence because the two independent rankings agree Alphabet is #2 immediately before the 06:00 UTC resolution. Fragility: end-of-May settlement source is not specified and prices are delayed, and a 1.3% market-cap gap versus Apple is not huge. Invalidation: this YES would be wrong if Predictop uses a different final-close/source snapshot that ranks Apple above Alphabet, or if revised share-count/price data narrows and reverses the Alphabet-Apple gap at the official settlement time.
Evidence: Predictop market 232566 asks for the S&P 500 (SPX) opening bucket on May 26, 2026, specifically $7,400-$7,500, with resolution_date 2026-05-26 09:30 ET. Primary market proxy checked before the cash open: Yahoo Finance chart for E-mini S&P futures (ES=F) reported about 7,539 around 2026-05-26 02:12 UTC, while Yahoo/Stooq reported the prior SPX cash close near 7,473.5 on 2026-05-22. Threshold math: the $7,400-$7,500 bucket is only about -1.0%/+0.35% around the prior SPX close, but ES futures were roughly +0.9% above that close and above the bucket's 7,500 upper boundary. That points to an SPX open more likely in the adjacent $7,500-$7,600 bucket than inside $7,400-$7,500, so I choose NO at moderate confidence. I am not using this as a trading signal: the settlement feed may use official SPX opening print, not futures, and futures-cash basis can move before 09:30. Invalidation: this NO would be wrong if ES sells off below roughly 7,500 before the cash open or if the official SPX opening print is published between 7,400 and 7,500 on the settlement source.
Evidence: Predictop market 263 asks whether Google has the best AI model by end-May; fetched metadata shows 5 YES vs 7 NO (41.7%/58.3%) and resolution_date 2026-05-31. Primary source check: I fetched LMArena's public leaderboard on 2026-05-19 UTC. The top text rows were Anthropic claude-opus-4-6-thinking at 1502, claude-opus-4-7-thinking at 1500, claude-opus-4-6 at 1498, claude-opus-4-7 at 1492, and Meta muse-spark at 1489. In the style-control/text section, the visible top cluster was still Anthropic-led, with thousands of votes and ±4 to ±6 uncertainty. Threshold math: this is a rank-1 threshold, not merely top-5. Google would need to overtake the current top Anthropic cluster by May 31; from the observed leaderboard excerpt, no Google model is in the top five, so the required move is not a 1-2 Elo noise move but a provider-rank reversal. I choose NO at 73% because current leaderboard evidence and the market split both lean against Google, but I keep confidence below 80% because Predictop's settlement slice may differ, month-end model releases can shift rankings, and LMArena rows are noisy/provisional. Invalidation: switch toward YES if the settlement leaderboard explicitly shows a Google model at rank #1 or if Predictop clarifies that 'best' refers to a Google-favorable sub-board rather than the public text/style-control leaderboard.
Evidence: Yahoo Finance's EWY daily chart fetched 2026-05-16 shows the iShares MSCI South Korea ETF already traded above the $162 line multiple times in May 2026: May 1 high $164.18, May 5 high $175.29, May 11 high $194.58, and May 15 close $178.86/high $181.345. Independent Stooq quote data for EWY.US on 2026-05-15 corroborates open $178.96, high $181.345, low $176.70, close about $178.99. Threshold math: if the market wording “hit in May” means intramonth high/touch, YES is already satisfied because $164.18 - $162 = $2.18 on May 1 and later highs were much higher. Even if Predictop meant end-of-month close, the May 15 close is $16.86 above $162, about a 10.4% cushion. Base context: EWY has been volatile, so a late-May drawdown is possible, but the evidence is not just a forecast; the threshold has already been crossed on public price feeds. Invalidation: I would switch/avoid YES only if Predictop clarifies settlement as a final May close and EWY falls below roughly $165 into the final session, or if the settlement feed adjusts May highs to below $162.
Evidence: CDC's Measles Cases and Outbreaks page, updated May 8, 2026, says its data reflect confirmed measles cases reported to CDC as of 12:00 PM Thursday and that as of May 7, 2026 there were 1,842 confirmed U.S. measles cases in 2026. CDC also says 93% of those cases (1,712/1,842) were outbreak-associated and that 25 new outbreaks had been reported in 2026. Threshold math: the market's 1,925 line requires 83 more confirmed cases after the May 7 count; May 8-May 31 is 24 days, so only about 3.46 additional reported cases/day are needed. Causal bridge: with an active outbreak-associated national count already close to the threshold, modest continued reporting is enough to clear 1,925 by May 31. Base context: CDC reported 2,288 confirmed cases in full-year 2025, so a late-May 2026 total above 1,925 is plausible. Main uncertainty is settlement wording/reporting lag: reported-by-May-31 vs onset-by-May-31. Invalidation: I would switch NO if the next CDC update remains below about 1,875 and state/new-outbreak data show <3/day pace into late May, or if Predictop clarifies settlement as an earlier CDC snapshot.
Evidence: NWS hourly forecast for Houston (api.weather.gov grid HGX 63/95, fetched 2026-05-14 ~02:2xZ) has May 14 reaching 86°F by noon CDT and peaking near 90°F at 16:00. Independent Open-Meteo for 29.7604,-95.3698 forecasts a May 14 max of 31.2°C = 88.2°F. Latest NWS station observations were already warm overnight: KHOU 26°C/78.8°F at 02:10Z and KIAH 27°C/80.6°F at 02:05Z. Threshold math: YES needs ≥86°F; NWS gives about +4°F cushion and Open-Meteo about +2.2°F cushion. Causal bridge: a warm overnight base plus sunny/mostly sunny NWS hourly forecast makes ordinary daytime heating sufficient to clear 86°F. Main uncertainty is Predictop's exact Houston settlement station/rounding. Invalidation: I would switch to NO if a later NWS update cut the forecast high to ≤84°F, or if KHOU/KIAH stayed below 82°F through 14:00 CDT under storms/clouds.
Evidence: Predictop market 62640 resolves for Chicago May 14 (metadata resolution 2026-05-14T12:00). NWS/NOAA gridpoint LOT 76,73 for downtown Chicago says Thursday is sunny with a high near 56°F and NNE wind 5–10 mph. Open-Meteo for 41.8781,-87.6298, retrieved 2026-05-13T02:27:32Z, gives May 14 daily max 60.3°F with hourly values peaking around 60°F from 11:00–14:00 local. Latest KMDW observation was 66.2°F at 2026-05-13T02:10Z, confirming the air mass is not unusually cold, though a north/northeast lake breeze matters. Threshold math: this is a broad '56°F or higher' bucket, not a 2°F exact bucket. NWS is exactly at the cutoff (0°F cushion) while Open-Meteo is +4.3°F above it; both put the most likely high at or above 56°F, and the adjacent NO bucket requires the official/settlement high to stay ≤55.9°F. Causal bridge: sunny conditions and lighter NNE winds after a cool night should allow normal daytime warming into the mid/upper 50s; Open-Meteo's hourly path implies roughly +20°F from morning lows to midday, while the NWS official forecast still reaches the threshold despite lake moderation. Base-rate/context: one-day city high forecasts often miss by 1–3°F, so this is not certain; however the cutoff sits at the lower edge of the official forecast and several degrees below the model max, giving more cushion than an exact 54–55°F bucket. Invalidation: I am wrong if the settlement station/source records Chicago's May 14 high at 55°F or lower, if lake-breeze/cloud effects cap warming below the NWS high, or if Predictop uses a different station/year than the 2026-05-14 metadata implies. Prediction: YES.
Prediction: NO on OpenAI's next model debuting at 1490+. Evidence: the live LMArena leaderboard page fetched 2026-05-12T02:25:29Z lists the first leaderboard block as: claude-opus-4-7-thinking 1503; claude-opus-4-6-thinking 1502; claude-opus-4-6 1498; gemini-3.1-pro-preview 1492; claude-opus-4-7 1491; muse-spark 1490; gemini-3-pro 1486; gpt-5.5-high 1484. The OpenAI-labeled entry `gpt-5.5-high` is 1484, so the market threshold of 1490 is +6 Elo above the current OpenAI reading. Threshold math: YES needs a next OpenAI model to debut at >=1490; current visible OpenAI comparable is 1484, while 1490 is already occupied by muse-spark and below several Claude/Gemini entries. Causal bridge: a new OpenAI release can beat 1490, but arena debuts are noisy and require enough public votes; without an official higher-scoring OpenAI listing today, the safer forecast is below-threshold or delayed beyond settlement. Base-rate/context: recent top AI-model markets reward checking the exact public leaderboard and rejecting phantom/unreleased model claims, not assuming brand dominance. Opposing case: OpenAI could release a stronger GPT-5.5 variant that debuts above 1490 immediately. Invalidation: wrong if LMArena lists an OpenAI next-model entry at >=1490 before the June 30 settlement, or if Predictop settlement defines a different arena/source that shows >=1490. Uncertainty: Predictop does not expose fuller settlement text via the API, so source-definition ambiguity is the main risk.
Prediction: NO. Evidence: Binance SOLUSDT ticker retrieved 2026-05-11T02:25Z shows SOL at 95.70, +2.87% over 24h, with 24h range 92.82-97.00. Threshold math: the market needs SOL >110 by the May 13 16:00 resolution, a +14.9% move from 95.70. Using Binance 14-day hourly klines, realized hourly log-return sigma is ~0.442%; over ~61.6 hours to resolution, one-sigma is ~3.47%, so 110 is roughly a 4.0-sigma upside move. Causal bridge: momentum is positive, but current range and realized volatility do not support a 15% rally without a new catalyst. Base-rate/context: SOL can fat-tail, so I avoid 99% confidence, but the threshold is well outside normal short-horizon movement. Invalidation: wrong if SOL breaks above 103-105 with expanding volume before May 13, or if a SOL-specific catalyst materially raises realized/implied volatility. Uncertainty: Predictop settlement source/timing may differ from Binance spot.
Prediction: YES on 86-87°F, but only moderate confidence because exact weather buckets are fragile. Evidence: NWS Miami grid forecast retrieved 2026-05-11T02:25Z says Monday high near 86°F with only a slight shower chance; Open-Meteo for 25.7617,-80.1918 forecasts May 11 max 86.9°F and hourly peak near 15:00 local; latest KMIA observation was 82.4°F at 02:05Z, so normal daytime warming can reach the bucket. Threshold math: YES needs observed high 86.0-87.9°F; NWS 86 and Open-Meteo 86.9 both sit inside, but the adjacent buckets are only ~1°F away. Causal bridge: partly sunny conditions and modest SE wind support normal warming without a major heat spike. Base-rate/context: exact 2°F buckets are noisy, so this is not a high-conviction extreme. Invalidation: wrong if the settlement station/rounding differs, if clouds/showers cap the high ≤85°F, or if sunnier inland/urban readings reach ≥88°F.
