The Prediction Markets

Market comparison

What price will Ethereum hit in October?

2 venues · 32 outcome rows · 4 comparable lines · event identity linked · 0 verified parity · active

Polymarket

Open venue ↗

41 outcomes · $2.6M reported volume

Observed 1m ago

Recorded venue end date: Nov 1, 2026

16 outcomes · $170K reported volume

Observed 1m ago

Observed 3m ago

Recorded venue end date: Nov 1, 2026

Check settlement rules before comparing contracts. Matched outcomes may settle differently. These are stored prices; record update times do not certify live quotes. Differences exclude fees and available size.

Known rule differences between venues

  • Kalshi settles on CF Benchmarks real-time indices (e.g. BRTI); Polymarket on Binance USDT-pair 1-minute candle highs/lows. A brief wick on one source may not appear on the other.
  • Windows differ: Polymarket counts from market creation; Kalshi rungs count from each rung's own start date (e.g. Feb 5, 2026 for some 2026 lows).
  • Kalshi rungs are strict ('Above $99,999.99', 'Below $55,000'); Polymarket rungs are inclusive. They differ only at exactly the level.

A shared identity alone does not make a price difference executable.

↑ 3,000

Resolution sources differ

Do not treat this price difference as directly comparable.

Polymarket

2.1%

Bid 2.0% · Ask 2.2%

↑ 3,000

Open Polymarket ↗

Kalshi

3.0%

Bid 2.0% · Ask 3.0%

Above $3,000.00

Open Kalshi ↗

Price difference 0.9 pp

↑ 3,500

Resolution sources differ

Do not treat this price difference as directly comparable.

Polymarket

0.4%

Bid 0.3% · Ask 0.4%

↑ 3,500

Open Polymarket ↗

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Above $3,500.00

Open Kalshi ↗

Price difference 1.7 pp

↑ 4,500

Resolution sources differ

Do not treat this price difference as directly comparable.

Polymarket

0.1%

Bid 0.1% · Ask 0.2%

↑ 4,500

Open Polymarket ↗

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Above $4,500.00

Open Kalshi ↗

Price difference 0.9 pp

↓ 2,000

Resolution sources differ

Do not treat this price difference as directly comparable.

Polymarket

6.8%

Bid 6.6% · Ask 7.0%

↓ 2,000

Open Polymarket ↗

Kalshi

5.0%

Bid 5.0% · Ask 8.0%

Below $2,000.00

Open Kalshi ↗

Price difference 1.8 pp

1,800

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

1.4%

Bid 1.2% · Ask 1.5%

↓ 1,800

Open Polymarket ↗

Kalshi

—

1,900

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.3%

Bid 2.9% · Ask 3.7%

↓ 1,900

Open Polymarket ↗

Kalshi

—

2,100

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

15.5%

Bid 15.0% · Ask 16.0%

↓ 2,100

Open Polymarket ↗

Kalshi

—

2,200

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

28.5%

Bid 28.0% · Ask 29.0%

↓ 2,200

Open Polymarket ↗

Kalshi

—

2,300

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

58.5%

Bid 58.0% · Ask 59.0%

↓ 2,300

Open Polymarket ↗

Kalshi

—

2,400

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,400 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,400

Open Polymarket ↗

Kalshi

—

2,500

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,500 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,500 · closed

Open Polymarket ↗

55.0%

Bid 54.0% · Ask 56.0%

↑ 2,500

Open Polymarket ↗

Kalshi

—

2,600

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,600 · closed

Open Polymarket ↗

28.0%

Bid 27.0% · Ask 29.0%

↑ 2,600

Open Polymarket ↗

Kalshi

—

2,700

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,700 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,700 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,700 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,700 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↑ 2,700 · closed

Open Polymarket ↗

100.0%

Bid 99.9% · Ask 100.0%

↓ 2,700 · closed

Open Polymarket ↗

12.5%

Bid 12.0% · Ask 13.0%

↑ 2,700

Open Polymarket ↗

Kalshi

—

2,800

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

6.5%

Bid 6.0% · Ask 7.0%

↑ 2,800

Open Polymarket ↗

Kalshi

—

2,900

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

3.3%

Bid 3.2% · Ask 3.4%

↑ 2,900

Open Polymarket ↗

Kalshi

—

3,100

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

1.6%

Bid 1.5% · Ask 1.6%

↑ 3,100

Open Polymarket ↗

Kalshi

—

3,200

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

1.0%

Bid 0.9% · Ask 1.1%

↑ 3,200

Open Polymarket ↗

Kalshi

—

3,300

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.5%

Bid 0.5% · Ask 0.6%

↑ 3,300

Open Polymarket ↗

Kalshi

—

3,400

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.4%

Bid 0.4% · Ask 0.5%

↑ 3,400

Open Polymarket ↗

Kalshi

—

3,600

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

0.3%

Bid 0.2% · Ask 0.3%

↑ 3,600

Open Polymarket ↗

Kalshi

—

Above $3,250.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 2.0%

Above $3,250.00

Open Kalshi ↗

Above $3,750.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Above $3,750.00

Open Kalshi ↗

Above $4,000.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Above $4,000.00

Open Kalshi ↗

Above $4,250.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Above $4,250.00

Open Kalshi ↗

Above $4,750.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Above $4,750.00

Open Kalshi ↗

Below $1,000.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Below $1,000.00

Open Kalshi ↗

Below $1,250.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 2.0%

Below $1,250.00

Open Kalshi ↗

Below $1,500.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 0.0% · Ask 2.0%

Below $1,500.00

Open Kalshi ↗

Below $1,750.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

2.0%

Bid 1.0% · Ask 3.0%

Below $1,750.00

Open Kalshi ↗

Below $2,250.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

39.0%

Bid 39.0% · Ask 44.0%

Below $2,250.00

Open Kalshi ↗

Below $2,500.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

99.0%

Bid 0.0% · Ask 100.0%

Below $2,500.00 · closed

Open Kalshi ↗

Below $750.00

Not aligned

No persisted outcome identity connects these venue contracts.

Polymarket

—

Kalshi

1.0%

Bid 0.0% · Ask 1.0%

Below $750.00

Open Kalshi ↗

Prices are shown as percentages of a $1 payout. “pp” means percentage points. A dash means data is unavailable.