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Ethereum 15-minute Up or Down — historical patterns

How often does Ethereum close UP vs DOWN in 15-minute Polymarket markets? This page breaks down real historical outcomes — by time of day and day of week — so you can spot statistical patterns. Data updates automatically.

Ethereum shows a clear, repeatable skew at 15-minute — several slots deviate well beyond chance, which is unusual for short-term crypto markets.

Key takeaway: The standout pattern is 6:30PM-6:45PM ET, which closed DOWN 66% of the time across 88 markets.

Overview

49% UP

Across the most recent markets, Ethereum closed UP 49% of the time in 15-minute slots (8,450 markets analyzed). A reading near 50% means the market is efficient; a strong skew suggests a recurring pattern.

Strongest patterns

The slot with the strongest UP lean is 3:30PM-3:45PM (64% UP over 89 occurrences).

The slot with the strongest DOWN lean is 6:30PM-6:45PM (66% DOWN over 88 occurrences).

Slot (ET)UP %DOWN %MarketsSignificance
6:30PM-6:45PM34%66%88★★★
3:30PM-3:45PM64%36%89★★★
10:15PM-10:30PM36%64%87★★★
10:45AM-11:00AM63%37%88★★
10:15AM-10:30AM39%61%88★★
11:00AM-11:15AM61%39%88★★
8:15PM-8:30PM39%61%88★★
12:45AM-1:00AM40%60%88
3:00AM-3:15AM40%60%88
1:15PM-1:30PM60%40%88
3:15PM-3:30PM60%40%88
5:00PM-5:15PM60%40%89

Win rate by time of day (ET)

Slot (ET)UP %DOWN %Markets
12AM ET47%53%352
1AM ET51%49%352
2AM ET51%49%352
3AM ET47%53%352
4AM ET49%51%352
5AM ET51%49%352
6AM ET47%53%352
7AM ET52%48%352
8AM ET48%52%352
9AM ET48%52%352
10AM ET51%49%352
11AM ET53%47%350
12PM ET48%52%351
1PM ET53%47%352
2PM ET49%51%352
3PM ET54%46%354
4PM ET50%50%355
5PM ET50%50%353
6PM ET42%58%352
7PM ET51%49%352
8PM ET48%52%352
9PM ET49%51%352
10PM ET44%56%351
11PM ET54%46%352

Win rate by day of week

Slot (ET)UP %DOWN %Markets
Sunday51%49%1169
Monday49%51%1248
Tuesday50%50%1248
Wednesday49%51%1247
Thursday49%51%1214
Friday47%53%1172
Saturday51%49%1152
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How this works

Each 15-minute Polymarket market resolves UP or DOWN. We aggregate outcomes by their start time and weekday, then compute the UP rate and a statistical significance score (Z-score). Patterns with more occurrences and higher Z-scores are more reliable. Past patterns do not guarantee future results.

Updated: 2026-08-13 · Not financial advice. Historical data only.