SimpleFunctions

Above 1505 · next Claude Opus debut score?: Above 1

Above 1505 is priced at 14¢ on Kalshi. Current book: 14¢ bid, 20¢ ask, 6¢ spread. This outcome ranks #10 of 12 inside next Claude Opus debut score?: Above 1.

Price history

14¢ current

+1¢
10¢
Jul 23, 2026Jul 26, 2026

Contract brief

If A model called Opus 4.9 or greater scores Above 1505 on Arena AI Text Score (Remove Style Control) Before Jan 1, 2027, then the market resolves to Yes.

Outcome

Above 1505

Rank

#10 of 12

Leader

Above 1460 94¢

Range

4¢-94¢

Family volume

$832

Identifier

KXARENASCORE-OPUS49-1505

Jul 26, 2026, 3:38 PM UTC · 27m ago

Implied probability

14¢
Latest venue quote
Jul 26, 2026, 3:38 PM UTC · 27m ago

Bid

14¢

Ask

20¢

Spread

Reported volume

$200

Family rank

#10 of 12

12 outcomes · next Claude Opus debut score?: Above 1

Closes

Jan 1, 2027

Family volume

$832

Orderbook snapshot

14 / 20¢

Kalshi
6¢ spread
BidSize
14¢1
13¢200
5¢55
4¢96
3¢136
AskSize
20¢200
54¢89
55¢256
56¢205
70¢46

Contract terms

What resolves this market.

YES condition

If A model called Opus 4.9 or greater scores Above 1505 on Arena AI Text Score (Remove Style Control) Before Jan 1, 2027, then the market resolves to Yes.

Venue

Kalshi

Closes

Jan 1, 2027

Identifier

KXARENASCORE-OPUS49-1505

SF Signal
SF Index
1410.39
Regime
neutral

Indicators

Yield, cliff risk, volatility, and regime.

IY (Yes)

1410.4%

IY (No)

37.4%

Adj IY

1410%

CRI

6

RV

1188%

VR

2.52

Regime

neutral

Score

0.5

Full indicator table

1410.4%
37.4%
Adj IY
1410%
6
RV
1188%
VR
2.52
IAR
0.6/h
Overround
5.0%

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SimpleFunctions context

Index, screen, query, and monitor.

Open index

How we compute these odds

SimpleFunctions aggregates live prediction-market contracts from Kalshi and Polymarket. Each slug groups contracts that resolve on the same underlying event, identified by venue event_id.

For binary slugs, the headline probability is the liquidity-weighted mid-price across all bound contracts. For multi-outcome slugs (e.g. elections with 3+ candidates), the headline is the leader’s price; we never arithmetically average disjoint outcomes — that would produce a number with no real-world meaning.

Snapshots refresh every 5 minutes during market hours; daily aggregates are computed at 04:00 UTC. The 30-day sparkline is drawn from per-ticker daily means stored in market_indicator_daily; 24h delta and movement events are derived from the same source.